What to do if your fuel pump wont start?

For future reference, I had this same problem when replacing the fuel pump on my 2002 s10 4.3L. 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.

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

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.

Where does the gas go after a fuel pump replacement?

IT SAID GRAY FROM MY OLD HARNESS GOES TO THE SMALL BLACK WIRE TO NEW HARNESS WHICH WAS WRONG !! SO WHEN I REWIRED IT GRAY TO GRAY ! IT PUMPED GAS RIGHT THRU THE FUEL LINE GOING TO THE FUEL FILTER LINE RIGHT AWAY !!

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.

Why does my son’s GMC Sonoma not start?

I have a huge favor and I’m stuck my son has a 2003 gmc Sonoma pulled into our driveway went to start it back up it would not start checked everything and it seem to be the fuel pump so we purchased a new fuel pump and we still can’t get it to start we have replaced the control module and it still won’t start any buddy have any ideas

What causes a fuel pump to not ignite?

If there is fresh fuel being delivered by the injectors (not just “to” the injectors) and the ignition system is working, that means that the air fuel ratio of the mixture delivered to the cylinders is so far off that the mixture just won’t ignite.

What causes a car to not start with no gas?

Problem may be at wiring connector on top of fuel tank (hard to reach!). No gas in fuel tank (Check the fuel gauge, and keep in mind the gauge may not be reading accurately). Bad gas (Contaminated with water or too much alcohol or diesel fuel). If you just filled up with gas and now your car won’t start, suspect bad gas.

What happens when you hit the starter on an electric fuel pump?

The switch will also let the pump run when you hit the starter because the engine doesn’t have oil pressure yet. One wire goes to the pump, one to the start circuit, and the other to the ignition circuit. So, when there is no oil pressure, the switch connects START to PUMP, and as soon as you start cranking it runs the pump.

Why does my fuel pump not start when I change it?

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. Another problem you could be having is spark.

What’s the best way to stop an electric fuel pump?

The easiest way is to use an oil pressure switch. The switch will stop the pump whenever the oil pressure in the engine goes away. So, whenever the engine is off, the pump will turn off automatically. Some switches just do that. But how do I get the pump to run when I’m trying to start the motor and the oil pressure’s not up yet?

Why does my Car start but wont start?

If it cranks well but doesn’t start, your problem is not fuel related. That would leave ignition, compression and timing , in that order. Have you checked for a broken timing belt?

Why does my 98 Isuzu Rodeo not start?

I just changed the fuel pump on my 98 Isuzu Rodeo and now it wont start. The pump is getting power because i can hear it humming. Fuel is getting to the fuel rail, I checked the the shrader valve. I tested the battery and its fully charged but it wont start.

What to do if your car wont start after replacing the fuel pump?

Car won’t start even after I replaced the fuel pump. Car won’t start and turned off while driving. Replaced the fuel pump and I can hear it working. The car still won’t start.

If it cranks well but doesn’t start, your problem is not fuel related. That would leave ignition, compression and timing , in that order. Have you checked for a broken timing belt?

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 truck not start after a fuel pump replacement?

WELL I COULD HERE IT COME ON BUT NO GAS COMING OUT OF THE FUEL LINE WHERE I DISCONNECTED THE FUEL FILTER LINE TO CHECK IF IT WAS PUMPING GAS TO THE ENGINE AND NO LUCK !!!! SO HERE IS THE DEAL ON THIS PROBLEM WELL TWO OF THE WIRES WERE CROSSED !!!!

Why does my Chevy C / K 1500 not start?

FYI – If the pass lock isn’t working properly, the computer will not keep the fuel pump on when the key is turned to start and released. 72 people found this helpful. Note: If the battery dies or is disconnected, or the computer is disconnected, this procedure may have to be repeated.

What to do if your fuel pump won’t turn over?

Replaced fuel pump turns over like new but won’t start fu… Replaced fuel pump new engine but still won’t turn over what else could it be My car has 157000 miles. My car has an automatic transmission. Of course, confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting.

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.

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 S-10 not start up?

Once the truck starts and is running you can remove the jumper to the fuel pump and it will continue to run. The only thing i can think of is that you are not getting the priming signal to the fuel pump, that the ECM if faulty. It turns over fine.

Can a bad fuel filter cause a Chevy S10 to stall?

One of the worst problems that can happen to your Chevy S10 is a bad fuel filter. When the filter goes bad, it can limit the amount of fuel that enters the engine. Without fuel, the vehicle will not run at all. With that in mind, most of the symptoms of a bad fuel filter revolve around the vehicle stalling out.

What happens when the ignition switch on a Chevy S10 goes bad?

If your Chevy S10 is starting right up, but then immediately dies, that is a very good indication that the ignition switch is bad. Here’s what happens. You aren’t getting power to the ignition or fuel pump while the key “rests” in the run position.

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 did I have to change the fuel pump?

I had to change the pump because it had failed, no pressure or electrical humming. Make sure the fuel injectors are pulsing as oldtimer mentions. Even if the injectors are pulsing it won’t run with only 10 psi fuel pressure. Just curious, do you have a check engine light?

Why is there no fuel going to the fuel tank?

Another logical cause could be the fuel pump. If the fuel pump is electric, the 12-volt power may be shorted. A hole in the fuel line on the tank side could also cause the fuel pump to suck air instead of fuel from the fuel tank.

Why is my Chevy fuel pump not working?

The thick black wire is the ground. If the fuel pump has been replaced before, It could have had the connector replaced with the new style ( old style is square and the new style is more rectangle/flat) and where they splice the new connector in could have gone bad.

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.

Why does my Truck turn over but won’t start?

There are many potential engine issues when your truck turns over but won’t start indicating that your engine is not getting enough fuel, doesn’t have the appropriate compression or is not receiving fuel. Sources for this problem vary, starting with the ignition system’s issues to problems with the fuel supply system.

What are the symptoms of a bad fuel pump?

Symptoms of a Bad Fuel Pump 1 Car Won’t Start. There are a host of issues that could prevent a car from starting, but a lack of fuel is one of the first things to check. 2 Car Dies Under Heavy Load. 3 Inconsistent and Unintended Acceleration. 4 Decreased Fuel Efficiency. 5 Increased Engine Temperature

Why does my car engine not want to start?

If the engine still doesn’t seem like it wants to start, probably fuel is getting into the cylinders and your problems lies somewhere else. However, if the engine runs momentarily and dies, then the problem is that fuel is not getting to the cylinders. Check for a clogged fuel filter, or a bad fuel pressure regulator.

What makes an engine not start or run?

All engines require three things to start and run: spark, fuel and compression. If any one of these is missing, your engine will not start. The fuel pump is running and delivering normal pressure to the engine

Do you need to replace fuel filter when replacing 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. You always want to replace the fuel filter when replacing the fuel pump.

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.

Can a car start with no fuel in it?

Once your fuel pump has finally given up the ghost, no fuel will reach your engine. You may hear your spark plugs firing when you try to start your car, but without fuel, the engine won’t be able to turn over. Of course, there could be other explanations for your engine’s failure to start besides a failed fuel pump.

What should fuel pressure be when no Buzz?

Fuel pressure is typically in the 35 to 45 psi range. If your Anti-Theft light is flashing; the anti-theft system is disabling the fuel pump to prevent the engine from starting. Bad fuel pump (Pump should run for a few seconds when ignition key is turned to start, no buzz means no fuel delivery to the engine).

How can you tell if your fuel pump is dead?

Of course, there could be other explanations for your engine’s failure to start besides a failed fuel pump. To confirm that your pump has failed, check the pressure in your fuel lines with a fuel pressure gauge; if it reads zero, then your pump is likely dead.

What to do if your fuel pump won’t start?

Use a circuit tester to check all the electrical connections to the fuel pump. Turn the key to ON. If you see a current, then it is not the pump. If there is no current, check the fuse.

Most of the time, if I leave the key in the On position, after several seconds to a few minutes, it will all of the sudden prime and the gauge comes alive. Then it will work for a few days until the next time it randomly doesn’t. I have ruled out the Passkey issue. The fuel pump relay works as it should. I always have power to Pin 30.

What does it mean when your fuel pump doesn’t Prime?

For a couple years, my truck has had an intermittent no start issue characterized by the fuel pump not priming. Most of the time when this issue is occurring, the fuel pump doesn’t prime and the fuel gauge is buried on E.

Prior to replacing a suspect fuel pump, be sure to confirm correct voltage is present at pump plug and connection clean/tight, proving the pump is bad rather than the electrical circuit serving it. Links below are forums that discuss your issue and have some good trouble shooting and possible fix info.

Where are the fuel pumps on a Ford Econoline?

@garygary, Andrew, you probably have two fuel pumps; a low pressure transfer pump within the fuel tank (rear) and a high pressure pump mounted to the frame rail (front).

How to know if your engine has no spark?

First Confirm Your Engine Has No Spark. 1 Disable the fuel system by removing the fuel pump fuse or relay. 2 Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. 3 Finally, Have someone crank the engine and watch for spark.

What causes no start on a Ford 4.6L?

If no voltage is present, as your helper cranks the engine, then the cause of no fuel condition is due to either a bad fuse, fuel pump relay, or inertia switch. How To Test The Fuel Pump -No Start Test (Ford 4.6L, 5.4L).

Why does my fuel pump say no start?

If no voltage is present, as your helper cranks the engine, then the cause of no fuel condition is due to either a BAD fuse, fuel pump relay, or inertia switch. The following tutorial will help you to test the fuel pump: How To Test The Fuel Pump -No Start Test (Ford 4.6L, 5.4L).

How to test fuel pump in Ford 4.9L?

For a step-by-step explanation on how to test the fuel pump, check out this tutorial: How To Test The Fuel Pump (Ford 4.9L, 5.0L, 5.8L). NOTE: You can run down to your local AutoZone or O’Reilly Auto Parts and rent one or, you can buy one online. You can check out the following link: Actron CP7838 Professional Fuel Pressure Tester

What causes a car to have no fuel?

Confirming power to the fuel pump (with a multimeter) also verifies that the fuel pump has failed and needs to be replaced. If no voltage is present, as your helper cranks the engine, then the cause of no fuel condition is due to either a BAD fuse, fuel pump relay, or inertia switch.

Can a poor fuel pressure regulator cause a Ford to stall?

A poor fuel pressure regulator can also cause your Ford to stall while idling or driving. While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

How to fix V10 cranks but not start?

If I use starting – Fixya V10 cranks but will not start. If I use starting fluid it will start and stay running. Any ideas? Does not show any error codes.

When do fuel pump relays need to be replaced?

Typically, when the relays are burned or go bad, they must be replaced. However, in order to prevent a newly replaced relay from burning again, it is recommended to first identify and discover the cause behind a failed relay, and then fix it before replacing the relay. If the cause persists, the relay can go bad again. 1. Vehicle Doesn’t Start 2.

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.

Why does my car have no fuel pressure?

Many people recognize this sound every time they start the car but don’t realize it is the fuel pump running. If you “DO NOT” hear the buzz of the fuel pump; then your engine has no fuel pressure, and we need to see why. The first thing you want to do is check the fuse panel to see if the fuse is blown.

Why is the fuel pump and relay not working?

The ignition circuit, which includes the ignition switch, controls power to many components, including the fuel pump and relay. If there is an issue with the switch or the circuit, perhaps a wiring problem, then power to the fuel system may be cut off.

What does no start, no fuel pump mean?

Not sure if that is the problem though as that fuse may get power after a relay closes? fuse is good. Any other ideas? No start, no spark, no fuel pump. working on my 2008 screaming eagle ultra classic that I just got. Engine is a no start.

Why does my fuel pump not prime when I turn it on?

Pulled fuel pump relay and put in a jumper wire to run the fuel pump and it started. Put the fuel pump relay back in and it starts and drives, but the fuel pump still doesn’t prime when turning the key on. I’m afraid that after sitting overnight, it will once again refuse to start.

Why does my Ford F250 engine not start?

There are a lot of issues that can cause your F250 to crank, but not start. The engine needs air, fuel, and a spark in order to run. It is highly likely that if the engine is cranking, but not starting that it has thrown an OBDII code. It is definitely worth it to use an OBDII scanner to check and see if the engine has thrown any trouble codes.

Can a faulty fuel pressure regulator cause a car to not start?

In the event your Ford cranks easily, but doesn’t start within the first five or six revolutions of the starter motor, you may have a faulty fuel pressure regulator. If the regulator has failed completely, the vehicle will crank, but not start at all.

Why does my car not start when I Turn on the ignition?

The most common causes are in the ignition (for example, a bad ignition coil) or fuel system (for example, a clogged fuel filter). However, the source may also be a mechanical fault (for example, a leaking valve), or faulty components in other systems.

Can a clogged fuel filter be fuel related?

Thank Andrew. If the fuel pump has been replaced and your issue is still fuel related you may have a clogged fuel filter or malfunctioning fuel injectors. If all of these parts are known to be functioning properly the issue is likely not fuel related.

Is it necessary to drop the fuel tank?

Hi there – no, it is not necessary to drop the tank to replace the refueling vent valve. However, it would be helpful to have the least amount of fuel possible in the fuel tank, simply to minimize spillage while… If there are any Check Engine lights or other dash lights on, the car might be stuck in limp home mode.

Why is my Duramax not starting after fuel filter change?

Changed the fuel filter today, and cannot for the life of me get the system primed back up. I loosened the bleeder screw, and have been pumping for so long that there’s a blister on my hand.

What causes no power to fuel pump, no spark?

That also cause the no fuel or spark condition, because the engine gets its timing from the signal. The wiring often gets cooked by the exhaust. It’s located down on the bellhousing on the drivers side.

What are the signs of a bad fuel pump?

If the vehicle is difficult to start, or it doesn’t start at all, or the car takes more cranks than average numbers to turn over – these are signs of a faulty fuel pump. A bad fuel pump makes unusual whining or whirring noise. You may also notice sputtering and backfiring if the fuel injection isn’t consistent.

Why is there no power going to fuel pump?

There are a lot of things that need to be verified before replacing any other parts as this will eventually become very expensive. Many times, the battery has failed and the vehicle will not start or provide power; it could simply be worn out or there could be a parasitic draw or a weak alternator that is not properly charging.

Why does my Car Crank but not get fuel?

IT WILL NOT GET FUEL IN THEFT MODE , WHICH IS WHY YOH GET THE CRANK BUT NO START!!! unfortunately your car either forgot the key , or the key itself took some damage either way just have it relearn the key , put it in the on position , and leave it for 15 mins or so or get a new key and have it programmed , YW Was this answer helpful?

What to do if your Econoline wont start?

If no pump sound/buzz, check all fuses/relays, fuel shut off switch (possible location in pic. below), trouble/error codes as a crank sensor will also cut power to pumps, if all looks good, suspect faulty pump.

Why is there no spark in my engine?

The idea behind checking for spark is to see if all of the 8 engine cylinders are getting spark. Here are the most common causes of a no spark result:

Where is the relay module located in a Ford E150?

The engine compartment relay module is located in one of two places depending on which type of engine your vehicle is equipped with: Gasoline engine: driver side of the engine compartment above the brake master cylinder. Diesel engine: passenger side of the engine compartment behind the power distribution box.

Where is the fuse panel on a Ford E-450?

Ford E-450 (1997 – 2008) – fuse box diagram. Ford E-450 (1997 – 2008) – fuse box diagram. Instrument panel fuse panel. The fuse panel is located below and to the left of the steering wheel by the brake pedal.

@garygary, Andrew, you probably have two fuel pumps; a low pressure transfer pump within the fuel tank (rear) and a high pressure pump mounted to the frame rail (front).

When did the Ford E-450 E450 come out?

Ford E-Series E-450 E450 (1995 – 2014) – fuse box diagram Year of production: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Fuses and circuit breakers specification Ford E-Series E-450 – fuse box Fuse/CB Ampere rating [A] Description 1 15

What makes a Ford 4.9L engine not start?

Without spark, the engine will crank but not start. Ignition control module (ICM). Depending on the year of your specific Ford, it’ll have a inner-fender mounted ignition control module or a distributor mounted ignition control module.

Can a blown head gasket cause no start?

The engine pistons and valves (and all the other related components like: timing chains, etc.) are the ones responsible for the induction of the fresh air the engine needs for the combustion process. Although rare, internal engine mechanical problems can and do cause no start conditions. Blown head gasket. Blown engine.

How to troubleshoot a Ford 4.9L no start?

Part 1 -How to Troubleshoot a No Start (Ford 4.9L, 5.0L, 5.8L). Troubleshooting a no start problem on your Ford 4.9L, 5.0L, or 5.8L pick up, van, or SUV can be easily done, with the right diagnostic information and troubleshooting strategy and in this article I’ll provide you with some of both.

Why does my car not start when I crank the engine?

If the engine doesn’t crank, or makes an unusual noise when cranking, you may have a starting system problem. The car’s security system may have made an error that disabled the fuel or ignition system, or the chip in the key may have failed.

What does it mean when your car won’t start?

In a no start condition (also known as a cranks but does not start) your vehicle’s starter motor is cranking the engine but the engine is not starting. This is usually due to a lack of spark, or fuel, or engine compression and in this article I’m gonna’ explain in some detail how to diagnose this type of condition/problem.

What does it mean when your car says no start?

In a no crank condition, the engine is not cranking when you turn the key to crank the engine. In other words, you turn the key and nothing happens since the engine won’t turn over. This usually due to a bad starter motor or a bad starter motor solenoid. Remember this article only deals with a no start condition.

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.

When do you replace the fuel pump harness?

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.

Why does my 96 Chevy Express van not start?

Also had a similar issue spin and no start with a 96 Chevy Express Van with the 5.7L. This vehicles issue turned out to be a shorted pink wire in the wiring harness that runs up the passenger side of the block. The vehicle had died while driving several times and wouldn’t start. Then, finally after blowing a couple fuses, would start at all.

What to do if your fuel pump wont start?