What happens when the fuel pump goes out on a Chevy Silverado?
What happens when the fuel pump goes out on a Chevy Silverado?
There are physical signs that you can feel when your Silverado’s fuel pump is going out. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. The engine may throw a P0087 trouble code. This trouble code detects that the fuel rail/system pressure is too low.
How does the fuel balance pump in a Chevy truck work?
The low pressure, about 32 kPa (7 psi) fuel balance pump is used only to transfer fuel from the auxiliary tank to the main tank in order to balance the fuel levels in both tanks. As the main tank level drops to about 25 percent below the level in the auxiliary tank, the fuel sender and balance module energizes the fuel pump relay.
How big is the fuel tank on a Chevy 3500?
Click to expand… 2019 3500 pickups have 36 gal tanks. I was just reading the new GM TECHLINK newsletter. It has an article concerning the 15-19 trucks with dual tanks. Has to do with dirt on top of the rear tank blocking the tank vent fitting.
How does a Chevy truck’s dual fuel tanks operate?
Any malfunction in either of the fuel gauge circuits will disable the system and the fuel will not be transferred from the auxiliary fuel tank to the main fuel tank. Loading…
Why are there two gas tanks in my GMC 3500?
Gmc Two Gas Tanks Why No Selector Switch. Hows It Work? My 02 GMC 3500 Dump fuel gauge is broken. The gas gauge shows E and the fuel message board says low fuel. It has two gas tanks but no selector switch, and it seems to pull gas from both sending units at the same time, while keeping track of the total fuel amount.
There are physical signs that you can feel when your Silverado’s fuel pump is going out. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. The engine may throw a P0087 trouble code. This trouble code detects that the fuel rail/system pressure is too low.
Click to expand… 2019 3500 pickups have 36 gal tanks. I was just reading the new GM TECHLINK newsletter. It has an article concerning the 15-19 trucks with dual tanks. Has to do with dirt on top of the rear tank blocking the tank vent fitting.
Any malfunction in either of the fuel gauge circuits will disable the system and the fuel will not be transferred from the auxiliary fuel tank to the main fuel tank. Loading…
Why does my Silverado have a trouble code P0420?
If you get P0420 or P0430 trouble codes with a scanner, it very well may be the catalytic converter causing these symptoms. One of the best indicators of a clogged fuel pump is going to be that the your Silverado is difficult to start. This because there’s not enough fuel pressure to properly atomize the fuel as it enters the combustion chamber.
What to do if your fuel pump has no power?
Check the ECM B fuse located in the under hood fuse box. This is the power supply to the fuel pump and relay. If the fuse is bad, then replace it to see if the fuel pump has power. The truck may start if the fuse is replaced but you will still need to replace the pump.
What should the fuel pressure be on a Chevy Silverado?
If you want to save some bucks on this purchase take a look at my recommendations here: Where To Buy A Fuel Pressure Test Gauge. FUEL PRESSURE SPECIFICATION: The fuel pressure specification for the 1999-2006 4.8L, 5.3L, 6.0L Chevrolet Silverado (Suburban, Tahoe) and GMC Sierra (Yukon, Yukon XL) is 55 to 62 PSI. Flex fuel engines: 48-54 PSI.
If you get P0420 or P0430 trouble codes with a scanner, it very well may be the catalytic converter causing these symptoms. One of the best indicators of a clogged fuel pump is going to be that the your Silverado is difficult to start. This because there’s not enough fuel pressure to properly atomize the fuel as it enters the combustion chamber.
What are the symptoms of a bad fuel pump?
Here are the most common symptoms of a bad fuel pump in your Chevy Silverado: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues. Keeping an open ear can save you from getting stuck somewhere with a bad fuel pump.
If you want to save some bucks on this purchase take a look at my recommendations here: Where To Buy A Fuel Pressure Test Gauge. FUEL PRESSURE SPECIFICATION: The fuel pressure specification for the 1999-2006 4.8L, 5.3L, 6.0L Chevrolet Silverado (Suburban, Tahoe) and GMC Sierra (Yukon, Yukon XL) is 55 to 62 PSI. Flex fuel engines: 48-54 PSI.
When did the Chevy fuel pump come out?
It started on Chevrolet truck models from 1996 to 2003 model years, but has expanded to other models as the connector and pump assemblies are not aging well. In fact, I have a financially strapped friend with an 04 Silverado that now caries a heavy rubber mallet in the truck.
Where is the connector on a Chevy fuel pump?
When you get the Delco replacement parts it comes with a new connector on the fuel pump side. The problem is the connector on the vehicle side of the harness. In the online Chevrolet repair manual I use, a Tech Tip states, the connector should be replaced with the fuel pump assembly.
It started on Chevrolet truck models from 1996 to 2003 model years, but has expanded to other models as the connector and pump assemblies are not aging well. In fact, I have a financially strapped friend with an 04 Silverado that now caries a heavy rubber mallet in the truck.
What are the symptoms of a fuel pump relay problem?
1. Engine stalls One of the first symptoms of an issue with the fuel pump relay is an engine that suddenly stalls. If the fuel pump relay has an issue while the vehicle is operating it will cut off power to the fuel pump, which will cause the engine to stall.
When you get the Delco replacement parts it comes with a new connector on the fuel pump side. The problem is the connector on the vehicle side of the harness. In the online Chevrolet repair manual I use, a Tech Tip states, the connector should be replaced with the fuel pump assembly.
Why is my Chevy Cobalt fuel pump not working?
Defective fuel pumps usually cause one of two types of problems on your 2.2L Chevrolet Cobalt. For the most part, the fuel pump will simply stop working and the engine will not get any fuel which causes it not to start. In certain cases, the fuel pump will function enough to start the vehicle but the engine will not run optimally.
What causes a fuel pump to leak at the bottom?
Fuel System Leaks Most mechanical fuel pumps have a weep hole on the bottom of the unit. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. This is one of the more common fuel pump problems found in classic cars that are between 30 and 60 years old.
What to do if your Chevy fuel pump fails?
Chevrolet fuel pump failures are a common and growing problem. If you have a fuel pump harness connector that looks like the flat one on the right or the square one at the bottom, then consider replacing it when replacing the pump. More details about this are below, but you might want to download your Chevy manual to help.
Fuel System Leaks Most mechanical fuel pumps have a weep hole on the bottom of the unit. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. This is one of the more common fuel pump problems found in classic cars that are between 30 and 60 years old.
What should the pressure be on a fuel pump?
On classic cars with mechanical style fuel pumps, however, the pressure is much lower—between four and six PSI. If you suspect that your fuel pump is not producing enough pressure, there are two tests you can perform. The first is a simple pressure output test.
Defective fuel pumps usually cause one of two types of problems on your 2.2L Chevrolet Cobalt. For the most part, the fuel pump will simply stop working and the engine will not get any fuel which causes it not to start. In certain cases, the fuel pump will function enough to start the vehicle but the engine will not run optimally.
What’s the warranty on a Chevy fuel pump?
【Warranty】This fuel pump comes with 30 Days HASSLE-FREE RETURN & 1 Year / 12 months unlimited replacement promise. If you don’t like it, just return it and get a full refund. If it doesn’t work well and just contact us, we’ll offer you a replacement directly. Our aim is to make you satisfy the parts and the service we provide for you.
When is the fuel pump relay turned on?
The fuel pump relay is an important component of the fuel system of your vehicle. The fuel pump relay gives the fuel pump power when it is time to build up fuel pressure in the rail. Whenever you turn on the ignition of your vehicle, the fuel pump relay is turned on. There are different reasons due to which the fuel pump relay fails.
Where is the fuel pump fuse box located?
The engine’s or the dashboard fuse box is usually a long black box containing a fuel pump relay and various other fuses and relays. For different vehicles, the fuel pump relays can be located in different places.
What happens when a fuel pump goes bad?
The engine turns off if the combustion chamber’s fuel is inadequate or doesn’t have the proper pressure. The part that ensures none of this happens is the fuel pump, and it cannot work perfectly if the fuel pump relay develops any issues. A faulty fuel pump relay can also cause the engine not to start at all and be completely dead.
How does a fuel pump work on a Chevy c1500?
When you need a replacement, swap your Chevrolet C1500 fuel pump for a high-performance and fit-tested component from AutoZone. The fuel pump is a vital element of your Chevy’s internal combustion engine system. When the fuel pump directs fuel from the fuel tank to the engine, the fuel is then burned to generate power to propel your vehicle.
How to test the fuel pump relay circuit?
TEST 4: Bench Testing The Fuel Pump Relay. Fuel Pump Circuit Diagram. More GM 4.3L, 5.0L, and 5.7L Tutorials. It’s very important that you start off your fuel pump relay diagnostic by first testing the fuel pump pressure with a fuel pressure test gauge.
How to test a GM 4.3L fuel pump?
More GM 4.3L, 5.0L, and 5.7L Tutorials. It’s very important that you start off your fuel pump relay diagnostic by first testing the fuel pump pressure with a fuel pressure test gauge. If the fuel pump relay IS NOT activating the fuel pump, the fuel pressure test gauge will register 0 PSI when cranking the engine.
What kind of fuel pump does a Chevy Tahoe have?
This tutorial will show you how to test the fuel pump relay on your 1997, 1998, 1999 Chevrolet/GMC full-size Pick Up, Suburban, Tahoe, or Yukon. It’ll also show you how to bench test the fuel pump relay in a step-by-step way to find out if it’s defective or not.
How to test a GMC fuel pump relay?
TEST 1: Swapping Out The Fuel Pump Relay. TEST 2: Making Sure The Fuel Pump Relay Has Power. TEST 3: Bypassing The Fuel Pump Relay. TEST 4: Bench Testing The Fuel Pump Relay. Fuel Pump Circuit Diagram. Where To Buy The Fuel Pump Relay. More GM 4.3L, 5.0L, and 5.7L Tutorials.
More GM 4.3L, 5.0L, and 5.7L Tutorials. It’s very important that you start off your fuel pump relay diagnostic by first testing the fuel pump pressure with a fuel pressure test gauge. If the fuel pump relay IS NOT activating the fuel pump, the fuel pressure test gauge will register 0 PSI when cranking the engine.
This tutorial will show you how to test the fuel pump relay on your 1997, 1998, 1999 Chevrolet/GMC full-size Pick Up, Suburban, Tahoe, or Yukon. It’ll also show you how to bench test the fuel pump relay in a step-by-step way to find out if it’s defective or not.
Can a fuel pump cause a no start condition?
CASE 1: If your fuel pressure gauge read 50 PSI or more as the engine cranked. This means that the fuel pump on your 4.3L, 5.0L, or 5.7L is OK and not the cause of your No Start Condition. The next step is to observe the fuel pressure gauge’s needle (after your helper stopped cranking the engine).
Here are the most common symptoms of a bad fuel pump in your Chevy Silverado: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues. Keeping an open ear can save you from getting stuck somewhere with a bad fuel pump.
What’s the fuel pressure on a 1996 Chevy c1500?
I stuck a fuel pressure gauge on the fuel rail port and was reading about 50 psi. Unfortunately, as high as that sounds, the injectors won’t even open until you are at about 60 psi.
Where is the fuel pump fuse on a 1996 Chevrolet c 1500 truck?
Where Is the Fuel Pump Fuse on a 1996 Chevrolet C 1500 Truck? The fuel pump fuse on your 1996 Chevrolet C1500 truck protects the fuel pump relay and the fuel pump motor from electrical overloads. It is rated for 20 amperes and should not be replaced with a higher capacity fuse.
What was the problem with my GMC pickup truck?
Specifically, the lawsuit claimed the active fuel management (AFM) system, piston rings and PVC system in these vehicles were faulty and caused excessive oil consumption, as well as premature spark plug degradation and engine malfunction.
Can a check valve be replaced on a fuel pump?
Can be used to replace fuel pump modules built or Without check valve. Module has 2 Electrical Connectors. RPO Code EVA. Evaporative Emission Notes: Module assembly, With Module Code TCU.
What can I do if my fuel pump is not working?
The engine module is what powers the relay for the pump. Check them with the key on. You can check fuses while they are in the fuse box. There are 2 metal tips on each fuse to touch with a test light or a volt meter. Check these and let me know. I will be back on tomorrow after noon.
How can I tell if my fuel pump relay is faulty?
2. Engine does not start. Another symptom of a faulty fuel pump relay is an engine that does not start. If the fuel pump relay fails the fuel pump will be left without power. The engine may still crank when the key is turned, however it will not be able to start due to lack of fuel.
Where is the power wire on a Chevy fuel pump?
Want to make sure its a 5.7L engine with the classic style truck and not the new style truck with the 6.0L Right? On the fuel pump connector, the gray wire is the power wire. The thick black wire is the ground.
What are the symptoms of a bad fuel pump relay?
One of the first symptoms of an issue with the fuel pump relay is an engine that suddenly stalls. If the fuel pump relay has an issue while the vehicle is operating it will cut off power to the fuel pump, which will cause the engine to stall.
How do you check mechanical fuel pump?
Checking Mechanical Fuel Pumps Remove the air cleaner. Visually inspect the pump. Another way to check the pump is disconnect the fuel line at the carburetor and place it in a container. You should also check fuel pump pressure.
Do I have a fuel pump problem?
If you press the accelerator and feel that your car has hiccups, you may have problems with the fuel pump. The fuel pump may be choking due to inferior fuel, or the fuel pump may not be generating enough pressure to push the fuel forward into the system.
Where is the fuel pump located on a Chevy 1500?
Answer: The fuel pump on a Chevrolet Silverado 1500 is located under the driver’s side, attached to the frame rail. It is just easy to locate this component in most cars, and this usually requires tracing the fuel lines.
Why is my Chevy Silverado 2500 not starting?
While there are a variety of reasons your Chevrolet Silverado 2500 HD won’t start, the most common 3 are a dead battery, an alternator problem, or failed starter.
Why does my Chevy Silverado not accelerate when I push the gas?
If your Chevy Silverado won’t accelerate, that is a serious cause for concern. There are a lot of different reasons that can cause this. Diagnosing the issue can be narrowed down by whether the engine is still revving when you push the gas or not. There is a section for each scenario with likely causes for each.
Why is my Chevy Silverado not filling up with gas?
Many owners of the Silverado report that the gas pump will automatically shut off repeatedly when they are trying to refuel their beloved pickup. Why is this happening? It turns out that the Fuel Evap Canister commonly gets clogged with dirt, especially if you drive the pickup on gravel roads.
Where is the fuel EVAP canister on a Chevy Silverado?
The Fuel Evap Canister is located on the bottom of the vehicle and is required due to EPA regulations. The canister has a charcoal filter in it and traps vapors when fuel is evaporated and sends that fuel back into the tank.
What’s the problem with my Chevy Silverado gas pump?
The 2004-2011 Silverado 1500 has known issues with the EVAP system, a part of your emission control system. The EVAP canister vent valve or valve solenoid wiring may fail causing illumination of the check engine light, setting code P0446, and problems filling the tank with fuel.
Where can I buy a Chevy Silverado fuel pump?
Buy 2004 Chevrolet Silverado 1500 Fuel Pump from AutoZone. 10% OFF $75. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only
Why is my Chevy Silverado not filling up?
If you’re having a problem filling the gas tank in your Chevy Silverado, you’re not the only one. Many owners of the Silverado report that the gas pump will automatically shut off repeatedly when they are trying to refuel their beloved pickup. Why is this happening?
Can a bad fuel pump start a truck?
Yes and have nothing. Well getting to start by adding fuel to the throttle body is not going to turn on some special switch that will send a signal to the pump and injectors. I’m sure you probably just have a bad fuel pump that doesn’t have enough pressure or volume to start the truck, but at running speed can keep up.
Is there a way to turn on the fuel pump?
There’s no way you have no signal, but then starting the truck by adding fuel will then turn on the injectors and pump. That’s just crazy. Good luck with that one. Once the truck starts and is running you can remove the jumper to the fuel pump and it will continue to run.
Why is my fuel pump relay not working?
I have replaced the fuel pump relay oil pressure switch and computer. If you’re not getting a signal for fuel, then you either have a faulty crank sensor, or bad ignition module. But the truck runs great until you cut it off. If you poor a little gas in the intake to get it started would that only effect the starting ? Ok.
Why does my Chevy truck stall at idle?
Filter is not that old, and if plugged or if pressure regulator is malfunctioning, why do I never see fuel pressure at throttle body so much as waver lower than 12psi? Also, many times the lean condition will start just off idle so bad so that truck wil fall flat on its face and stall.
Where is the idle control valve on a Chevy Vortec?
The idle control valve sits on the throttle body and is responsible for adjusting the amount of air that enters the engine at idle, ultimately controlling engine idle speeds. At idle, the valve blocks a small amount of air from entering the engine, keeping idle RPM’s low.
Why does my fuel pump make a loud whine?
Most fuel pumps will produce a quiet hum during their normal operation, however, an excessively loud whine coming from the fuel tank is usually a sign of a problem. There may not be enough fuel, a damaged pump, or contaminated fuel inside the system.
What does a bad fuel pump sound like?
One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues. Keeping an open ear can save you from getting stuck somewhere with a bad fuel pump. It’ll sound like a low frequency buzzing sound.
What to do if your fuel pump is failing?
If your vehicle is displaying any of the symptoms above, or you suspect your fuel pump may be having an issue, have the vehicle inspected by a professional technician to determine if the pump should be replaced. The most popular service booked by readers of this article is Fuel System Inspection.
What kind of fuel tank does a Chevy Silverado use?
Durable, diamond tread aluminum construction is available in a choice of… L-Shape™ Fuel Transfer Tank by Dee Zee®. This series transfer tanks mount to your truck bed to provide safe transport of non-flammable fuels and liquids. An easy-in / easy-out pour system will make you glad to leave heavy, portable…
Where does the fuel pump go in a car?
In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s). It is in the fuel tank because “pushing” fuel to the fuel rail is easier than “pulling” the fuel, which is what an inline pump would do.
Durable, diamond tread aluminum construction is available in a choice of… L-Shape™ Fuel Transfer Tank by Dee Zee®. This series transfer tanks mount to your truck bed to provide safe transport of non-flammable fuels and liquids. An easy-in / easy-out pour system will make you glad to leave heavy, portable…
What kind of fuel pump do I Need?
We offer a complete line of electronic fuel pumps you need ! 2004-2007 Chevrolet Silverado 1500 V8-6.0L /V8-5.3L Standard Cab Pickup; Extended Cab Pickup; Gas,Vin (T) or Hybrid, Vin (T);78.0 Bed Length All of A ABIGAIL pumps undergo strict quality control not just before shipping but throughout the production process.
What kind of engine does a Chevy Silverado 3500 have?
Requires 3500 HD Regular Cab Long Box 2WD DRW with available Duramax 6.6L Turbo-Diesel V8 and Gooseneck hitch. Regular Cab Late Availability.
Why does my Chevy Spark Plug not start?
Chevrolets have a common issue with fuel filters getting clogged. You always want to replace the fuel filter when replacing the fuel pump. This could cause the concern you are having. It may seem as you are getting enough fuel from the pressure regulator but if the pressure from the fuel tank is not correct, it will still not start.
What kind of fuel pump does GM 4.3L have?
Depending on whether your vehicle has throttle body fuel injection or the ‘Spider’ fuel injection system, the following tutorial will help with this test: Troubleshooting the fuel pump (GM 4.3L, 5.0L, 5.7L) (for ‘Spider’ fuel system equipped vehicles).
How to change fuel injectors in Chevy GMC 4.8?
If playback doesn’t begin shortly, try restarting your device. An error occurred. Please try again later. (Playback ID: yXlcCJaenKqtzKEN)
Chevrolets have a common issue with fuel filters getting clogged. You always want to replace the fuel filter when replacing the fuel pump. This could cause the concern you are having. It may seem as you are getting enough fuel from the pressure regulator but if the pressure from the fuel tank is not correct, it will still not start.
What happens when you put gasoline in spark plug?
Gasoline mixtures up to a certain point on the lean side may increase engine operating temperature and show signs of heat on the plug. Without an adequate cooling system, a lean condition can cause overheating, pre-ignition, or even detonation, which could cause porcelain failure.
How are spark plugs tuned to offset weak ignition?
Some tuners offset that effect with increased spark advance. We’ve seen ignition advances of 10- to 15-degrees more than baseline values to offset a weak ignition.
Where is the fuel pump on a GM Truck?
As you’re already aware, the throttle body fuel injection system on your 1987 to 1995 4.3L, 5.0L, or 5.7L pickup (or SUV) uses a low pressure (12 PSI) electric fuel pump located in the gas tank. And although GM did not include a Schrader valve to which you could connect a fuel pressure gauge, it can be tested with one to find out if the fuel …
What causes a Chevy Silverado to run rough?
If an oxygen sensor goes bad, it can make your Silverado run too lean (or rich). A super lean running engine will often idle rough. Fuel Injectors. The fuel injection systems job is to atomize the fuel into fine mist.
If an oxygen sensor goes bad, it can make your Silverado run too lean (or rich). A super lean running engine will often idle rough. Fuel Injectors. The fuel injection systems job is to atomize the fuel into fine mist.
What happens if you have a bad fuel pump?
A bad fuel pump will make your 4.3L, 5.0L, or 5.7L throttle body fuel injected pickup or SUV crank but not start. Here are some more specific symptoms: The ignition system is creating and delivering spark to the spark plugs.
When does Chevy Silverado 1500 engine hesitate during acceleration?
Chevrolet Silverado 1500 Engine hesitates during acceleration Inspection at your home or office. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.
Is the idle speed on a Silverado too low?
I have a 99 Silverado w/5.3L engine. The idle speed is too low. It gets as low as 430 rpm when I firsty put the tranny in drive and then the idle increases to a more acceptable level. There are no DTC’s. This problem is most noticeable when you pull up to a stop. The engine rpm’s get low enough to dim the lights and almoist stall the engine.
What kind of engine does a 2003 Silverado have?
Here’s the kicker…..I put the new one in and the truck started right up and we thought it was fixed, my son drove the truck and it ran fine, but when he returned home, it wouldn’t keep running after he would try to start it again, no matter how many times we tried.
Chevrolet Silverado 1500 Engine hesitates during acceleration Inspection at your home or office. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.
Is there any power to the fuel pump?
I have no power to the fuel pump on a 2002 silverado 1500 5.3. Check the grey wire with the key getting switched on. Still no power. , GM MASTER/WORLD CLASS.
Where is the fuse for the fuel pump?
ASE MASTER replied 9 years ago Check the ECM B fuse located in the under hood fuse box. This is the power supply to the fuel pump and relay. If the fuse is bad, then replace it to see if the fuel pump has power. The truck may start if the fuse is replaced but you will still need to replace the pump.
Check the ECM B fuse located in the under hood fuse box. This is the power supply to the fuel pump and relay. If the fuse is bad, then replace it to see if the fuel pump has power. The truck may start if the fuse is replaced but you will still need to replace the pump.
ASE MASTER replied 9 years ago Check the ECM B fuse located in the under hood fuse box. This is the power supply to the fuel pump and relay. If the fuse is bad, then replace it to see if the fuel pump has power. The truck may start if the fuse is replaced but you will still need to replace the pump.
Why does my 5.3 liter Chevy engine use so much oil?
In fact, excessive oil consumption is so commonplace with the 5.3 Liter Chevy Engine- and it happens because of frictional loss- resulting in an increase in internal sludge the oil consumption. As most drivers know, oil consumption is related to fuel economy.
Why does my Vortec 5300 engine not start?
A faulty fuel pressure regulator can lead to your truck either getting too much fuel, or too little fuel. The result in both instances can be misfires, poor idling, loss of power, engine shakes during acceleration, and more. On the Vortec 5300, one of the most common symptoms is hard starting, or trouble starting the car.
What kind of engine does a Chevy Vortec 5.3 have?
Within both generations, the Vortec 5.3 had ten engine variations utilized within a host of General Motors’ vehicles. Some of those models included: the Sierra, Avalanche, Yukon, Silverado, Suburban, Tahoe other various GMC as well as Chevy models that were not as popular.
What should the fuel pressure be on a 4.3L Vortec?
The fuel system in your 4.3L, 5.0L, or 5.7L Vortec engine needs at least 50 PSI of fuel pressure to start. The fuel pump produces much more than just 50 PSI of course.. but the bare minimum the engine needs to start is 50 PSI…
In fact, excessive oil consumption is so commonplace with the 5.3 Liter Chevy Engine- and it happens because of frictional loss- resulting in an increase in internal sludge the oil consumption. As most drivers know, oil consumption is related to fuel economy.
A faulty fuel pressure regulator can lead to your truck either getting too much fuel, or too little fuel. The result in both instances can be misfires, poor idling, loss of power, engine shakes during acceleration, and more. On the Vortec 5300, one of the most common symptoms is hard starting, or trouble starting the car.
What’s the mileage of a Chevy Vortec 5.3?
Before we dig into the common problems, let’s talk about engine reliability. The Vortec 5.3 is widely regarded as extremely reliable, with most engines having a lifespan within the 200k-300k mileage range.
Why does my 2000 Chevy Silverado not start?
Question: My 2000 Chevy Silverado that will not start unless i pour gas in the throttle body. It has been sitting for about 8 months and prior to that there was no problems at all. I have good fuel pressure with no bleed down. Answer: Does it start after pouring gas in throttle and keep running fine? What is the fuel pressure?
How to check no fuel condition on GM 4.3L?
I’ve also included how to check a no fuel condition with starting fluid (although this is not the most effective way to test the fuel pump). It’s been my experience that misdiagnosing a bad fuel pump is a common occurrence on the 4.3L, 5.0L, 5.7L GM vehicles with the ‘Spider’ fuel injector assembly.
What is the sender code for a fuel pump?
Robust fuel system sender (K53) Notes: Fuel pump and sender assembly. Except evaporative emissions required (EVA), Robust fuel system sender (K53). Code :TCU. Includes level sensor Notes: Fuel pump and sender assembly. Evaporative emissions required (EVA). Except robust fuel system sender (K53).
A bad fuel pump relay can cause many different symptoms. Here are the most common ones The fuel pump relay is an important component of the fuel system of your vehicle. The fuel pump relay gives the fuel pump power when it is time to build up fuel pressure in the rail.
I have no power to the fuel pump on a 2002 silverado 1500 5.3. Check the grey wire with the key getting switched on. Still no power. , GM MASTER/WORLD CLASS.
【Warranty】This fuel pump comes with 30 Days HASSLE-FREE RETURN & 1 Year / 12 months unlimited replacement promise. If you don’t like it, just return it and get a full refund. If it doesn’t work well and just contact us, we’ll offer you a replacement directly. Our aim is to make you satisfy the parts and the service we provide for you.
When to replace the fuel pump on a Chevy Silverado?
If your Chevrolet Silverado isn’t performing the way it once did, or if you feel like you’re stepping on the gas pedal and not much is happening, it may be time to replace the fuel pump. This article applies to the Chevrolet Silverado (1999-2006).
What happens when the fuel pump goes out in a Chevy Malibu?
There are physical signs that you can feel when your Malibu’s fuel pump is going out. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. The engine may throw a P0087 trouble code. This trouble code detects that the fuel rail/system pressure is too low.
How do you Drop the fuel tank on a Chevy Silverado?
This article will walk you through the second method of dropping the fuel tank. Open the hood. Pull the fuel pump relay from the fuse box. Start the vehicle and let it run until it shuts down. Figure 1. Pull the fuel pump relay and start the engine in order to relieve gas pressure in the line and the pump.
Which is a symptom of a fuel pump problem?
Another symptom of a problem with the fuel pump is engine performance issues. As the fuel pump is what supplies the vehicle with the fuel required for combustion to occur, any issues with it can affect the engine’s fuel supply and cause issues.
When to know if your fuel pump is failing?
If your battery is charged and the car starter is firing (you hear the engine straining to start), but the engine does not turn over and start, it is probably due to a lack of fuel from the pump. To be certain, check your spark plugs and replace them if necessary.
Where is the weep hole on a fuel pump?
Most mechanical fuel pumps have a weep hole on the bottom of the unit. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction.
What happens if your fuel pump is failing?
The fuel pump feeds fuel to the engine at a reliable rate; without this pump, your fuel would just sit in your tank, useless and inert. If you’re attentive, you can catch the symptoms of a failing fuel pump and have it repaired or replaced before it leaves you stranded on the side of the road.
Why does my fuel pump not prime with the key on?
Fuel pump doesn’t prime with key on. I’ve been trying to figure this out for a couple days now. My 01 Tiburon wouldn’t start the other day. It would crank, but wouldn’t fire. When I turn the key to the “on” position, the fuel pump doesn’t kick on.
Where does the fuel pump go in a truck?
Searched forever for an answer. It turns out that in order to remove the bed of the truck, you must disconnect the ground for the fuel pump, which attaches in the rear on the drivers side. IIRC it ran either in or alongside the harness for the tail light wiring. Once I hooked that back up, my truck started right up.
What kind of fuel pump does a Chevy truck use?
Fits perfectly for any 1988 to 1998 fuel pump in a Chevy truck. Fuel pump is great and I haven’t had any problems with it. Also the warranty is good to have, always. Pages with related products. See and discover other items: 94 silverado, 95 gmc sierra, 1989 gmc sierra, pump fuel, parts for chevy 1989, 1992 gmc parts
When do you need a new fuel pump?
To keep it in peak form, you need respond to any sudden shift in performance, which is how you know that sudden jolting on acceleration points directly to the need for a new Chevrolet Silverado 1500 fuel pump from AutoZone. Jolting isn’t the only sign that Silverado 1500 fuel pumps need to be replaced.
How to remove a fuel pump from a truck?
Basic instructions on how to tip your bed and remove your fuel pump and sender assembly, replacement of the fuel pump from the sender unit and putting it back into the tank with gasket o-ring and lock ring. I also show video of the bolt hole locations on my short bed frame. Loading…
What kind of fuel filter does a Chevy Silverado have?
Fuel Filter with Head Assembly and Sensor – Compatible with Chevy and GMC Trucks – 6.6L Silverado 2500 HD, Classic, Sierra, HD, 3500 Classic with Duramax – Replaces 12642623, 12639448, TP3018, 904-517 . Only 13 left in stock – order soon.
What to do if your 6.6L diesel loses fuel Prime?
Make sure you have already primed the system so that you can see the leak sooner. Seal the opening around the shopvac hose with a rag while you pressurise it. Once youve built pressure look for leaks. It’s probably your filter head seals. You can get a rebuild kit from MerchantAuto for less than 50 bucks.
How big is a Silverado Z-71 fuel pump?
2000 Silverado Z-71. Engine size = 5.3 Repair done prior = Tune up at 100K with new fuel pump/sending unit. Work done to repair this problem = New fuel filter. New fuel pressure regulator. Throttle body cleaning. Air filter (K&N) cleaned and re-oiled. Fuel injector cleaner additive.
Question: My 2000 Chevy Silverado that will not start unless i pour gas in the throttle body. It has been sitting for about 8 months and prior to that there was no problems at all. I have good fuel pressure with no bleed down. Answer: Does it start after pouring gas in throttle and keep running fine? What is the fuel pressure?
Why does my Chevy Silverado stall at low rpm?
Stalls out while driving at low rpm , changed alternator, battery and 2brand new fuel pumps and still stalls , getting worse, before temp gets up it seems to run A ok ???? Please help !! My silverado idles extremely rough and stalls out when i press on the gas i can sometimes keep it running but barely does anyone know what it could be
Where is the CP3 injection pump in a Duramax?
The CP3 injection pump sits in the valley of the engine between the cylinder heads and is driven by the camshaft gear, and it has two main jobs: get fuel from the tank up to the engine, and pressurize the fuel to 26,000psi and ultimately inject it into the engine.
What’s the best way to replace a fuel pump?
If playback doesn’t begin shortly, try restarting your device. I like fixing things. all kinds of things. I do pretty much everything myself. I like making things.
Can a bad fuel pump start a GM Spider?
If you need to test the ‘spider’ equipped GM pickups or SUVs, the following tutorial will help: Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L). A bad fuel pump will make your 4.3L, 5.0L, or 5.7L throttle body fuel injected pickup or SUV crank but not start. Here are some more specific symptoms:
Can you test the fuel pump on a GM Truck?
And although GM did not include a Schrader valve to which you could connect a fuel pressure gauge, it can be tested with one to find out if the fuel pump is producing the correct pressure (or not).
A bad fuel pump will make your 4.3L, 5.0L, or 5.7L throttle body fuel injected pickup or SUV crank but not start. Here are some more specific symptoms: The ignition system is creating and delivering spark to the spark plugs.
And although GM did not include a Schrader valve to which you could connect a fuel pressure gauge, it can be tested with one to find out if the fuel pump is producing the correct pressure (or not).
If you need to test the ‘spider’ equipped GM pickups or SUVs, the following tutorial will help: Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L). A bad fuel pump will make your 4.3L, 5.0L, or 5.7L throttle body fuel injected pickup or SUV crank but not start. Here are some more specific symptoms:
How to test the fuel pump in a Dodge Ram?
How To Test The Fuel Pump (1992-2003 5.2L, 5.9L Dodge Ram Pickup). When checking fuel pump pressure, keep the following in mind: Fuel pump is OK. Fuel pump fuse is OK. Fuel pump relay is OK.
Can a fuel pump be replaced with no voltage?
If voltage is present (12 Volts), then you have confirmed that the fuel pump fuse and fuel pump relay are working perfectly. If your multimeter registers 12 Volts, you can replace the fuel pump with confidence. If no voltage is present, as your helper cranks the engine, then the fuel pump should not be replaced.
Can a Chevy Silverado start with a bad fuel filter?
At the most basic of levels your Chevy Silverado needs three things to start: Air, fuel, and spark. If any of these things aren’t present, the engine won’t turn over at all. If there’s been zero warning that the fuel filter could be going bad (hesitation, difficulty starting, etc) than a clogged fuel filter might not be the place to start.
What causes a fuel pump to go bad?
4. Damaged Fuel Pump. If you notice damage to your fuel pump, it may be caused by a restricted fuel filter. The clogged fuel filter puts too much pressure on the fuel pump and prevents the proper amount of fuel in the fuel tank from reaching the engine.
What are the symptoms of a bad fuel filter?
Here are the most common symptoms of a bad fuel filter in your Chevy Silverado: The only way that you are going to know that your Silverado’s fuel filter may be going out is that it is no longer letting enough fuel through to keep the engine running under a heavy load, or at high-speed.
At the most basic of levels your Chevy Silverado needs three things to start: Air, fuel, and spark. If any of these things aren’t present, the engine won’t turn over at all. If there’s been zero warning that the fuel filter could be going bad (hesitation, difficulty starting, etc) than a clogged fuel filter might not be the place to start.
4. Damaged Fuel Pump. If you notice damage to your fuel pump, it may be caused by a restricted fuel filter. The clogged fuel filter puts too much pressure on the fuel pump and prevents the proper amount of fuel in the fuel tank from reaching the engine.
How can I tell if my Chevy Silverado fuel pump is bad?
Testing your Silverado’s fuel pressure on each side of the pump would be the best way to diagnose this problem. A priming fuel pump sounds like a high-pitched whine for a few seconds and can be heard with a sharp engine right after the ignition key is turned, but before the starter is engaged.
Here are the most common symptoms of a bad fuel filter in your Chevy Silverado: The only way that you are going to know that your Silverado’s fuel filter may be going out is that it is no longer letting enough fuel through to keep the engine running under a heavy load, or at high-speed.
Why does my fuel pump feel like it is surging?
Irregular resistance inside the fuel pump motor may cause vehicle surging, and indicates a fuel pump in need of repair. Surging feels like the gas pedal has been used. However, it occurs at a random, consistent speed.
What happens when the fuel pump fails to start the car?
Car is not starting. If the fuel pump fails completely, or to the point of not being able to provide enough fuel for the engine to run, the vehicle will experience a no start condition. The engine will still crank when the key is turned, however it will be unable to start due to the lack of fuel.
Irregular resistance inside the fuel pump motor may cause vehicle surging, and indicates a fuel pump in need of repair. Surging feels like the gas pedal has been used. However, it occurs at a random, consistent speed.
When was the last time my Chevy fuel pump failed?
The technical service bulletin that explains the cause of the repeat failure of the Chevy fuel pump replacement unit covers all years from 1996 to 2003 and includes all of the pickup trucks. Also included is the Tahoe and suburban and their GMC counterparts such as the Sierra and Envoy. Oh and don’t forget the Cadillac Escalade is also included.
How does the fuel pump work in a car?
The fuel pump is a device that moves fuel from your tank to the engine, supplying the fuel at a constant pressure to ensure that your engine runs smoothly.
Why does my car accelerate when the fuel pump is not working?
When this mismatch becomes great enough, the pressure in your fuel lines can become inconsistent. In these circumstances, drivers may find their cars suddenly accelerating for a few moments even when they haven’t pressed the gas pedal, a condition known as surging. 5. Fuel Pump Failure Might Be a Reason Why Your Engine Won’t Start
What kind of fuel pump does Chevy 4.8 use?
The 4.8 uses a sequential multi-port fuel injection system, which is jargon for saying that the fuel system uses a fuel pump to send fuel to the injectors which then sprays fuel into the intake ports.
Where can I buy a 2001 Chevy Silverado fuel pump?
Buy 2001 Chevrolet Silverado 1500 Fuel Pump from AutoZone. Notes: Module assembly, Updated design Check Valve. Can be used to replace fuel pump modules built or Without check valve. Module has 2 Electrical Connectors. RPO Code EVA. Evaporative Emission Notes: Module assembly, Without evaporative emissions. Module cover has one electrical connector
What are the fuses on a Chevy Silverado?
RH Turn and Stop Lamp) ECM 1 Fuse #15 10A Vehicle Control Module (VCM)/Powertrain Control Module (PCM) from IGN I Relay) INJA Fuse @20 15A Fuel injectors 1. 3, 5, and 7. Ignition Coils. Glow Pug Module, Fuel Heat.
In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s). It is in the fuel tank because “pushing” fuel to the fuel rail is easier than “pulling” the fuel, which is what an inline pump would do.
How can you tell if your Chevy Silverado fuel pump is going out?
The only way that you are going to know that your Silverado’s fuel pump is going out is that it is no longer providing enough fuel pressure to keep the engine running under a heavy load, or at high-speed. Typically, if you are heading up a hill (or accelerating) the engine may start to feel like it is just running out of steam.
Why is my fuel pump not working when I replace it?
The concern with the fuel gauge is a common issue when replacing the fuel pump. The fuel level sensor is a separate component attached to the fuel pump. This part does not always come with the fuel pump and sometimes is not interchangeable with aftermarket fuel pumps. Chevrolets have a common issue with fuel filters getting clogged.
The concern with the fuel gauge is a common issue when replacing the fuel pump. The fuel level sensor is a separate component attached to the fuel pump. This part does not always come with the fuel pump and sometimes is not interchangeable with aftermarket fuel pumps. Chevrolets have a common issue with fuel filters getting clogged.
Why does fuel gauge read wrong after fuel pump replaced?
Fuel gauge reads wrong after fuel pump replaced – YouTube If you have a 96 or 97 year gm truck that needs a fuel pump, be sure to order it by the VIN. There is an option for a anti-slosh module that could cause you If you have a 96 or 97 year gm truck that needs a fuel pump, be sure to order it by the VIN.
What should I do if my fuel pump is not working?
Check again the fuel presure and replace FPR. If not, Ford use to have 2 fuel pump; One in the tank that send AMOUNT of fuel under low presure, and the other, (the one you replace), for high presure. If the primary is not sending suficient amount, the second will not stop asking for more, so you wil have a few seconds of propper fuel in the engine.
What’s the fuel pressure on an 88 F-350?
I have replaced the high pressure fuel pump, fuel pressure is at about 43 PSI key on, engine off. New TPI on distributor, no help. New fuel pump relay, no help.
Why does my GMC Sierra have a bad fuel pump?
If you get P0420 or P0430 trouble codes with a scanner, it very well may be the catalytic converter causing these symptoms. One of the best indicators of a clogged fuel pump is going to be that the your Sierra is difficult to start. This because there’s not enough fuel pressure to properly atomize the fuel as it enters the combustion chamber.
What should I do if my fuel pump keeps running?
Normally if the starter relay it stuck, the starter will continue to run even with the key off. Either way the fuel tank will probably need to be removed as the relays are under the tank on the right side & the fuel pump & filter hoses access are in the tank on the bottom right side.
Also, the symptoms are almost exactly the same as bad/clogged fuel filter. Here are the most common symptoms of a bad fuel pump in your GMC Sierra: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues.
I have replaced the high pressure fuel pump, fuel pressure is at about 43 PSI key on, engine off. New TPI on distributor, no help. New fuel pump relay, no help.
When did I change the fuel pump on my GMC Sierra?
I changed the fuel pump on my 1996 GMC Sierra earlier in the year. I cut through my truck bed right above the fuel pump so I would have easier access to it. For the most part my truck has been fine but I have had problems with the ground wire coming from the fuel pump. At first I thought it was just the old rusty bolt that grounds the fuel pump
Where to check for no start fuel pump?
The first thing you want to do is check the fuse panel to see if the fuse is blown. If your car has two fuse panels than the one in the engine compartment; should be the correct one to check. The fuse panel or circuit box is usually located near the battery; and is a small black box with a removable lid.
I changed the fuel pump on my 1996 GMC Sierra earlier in the year. I cut through my truck bed right above the fuel pump so I would have easier access to it. For the most part my truck has been fine but I have had problems with the ground wire coming from the fuel pump. At first I thought it was just the old rusty bolt that grounds the fuel pump