What causes a flashing check engine light on a Chevy Silverado?

While a majority of the time, the flashing check engine light is going to be caused by a misfire related to your Silverado’s ignition system or fuel system (as stated above), there are other issues that can cause it. Your timing chain could have jumped .

What is the diagnostic code for a Chevy check engine light?

Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. Manufacturer Specific Codes P0342Camshaft Position Sensor A Bank 1 Low Input – Related Information P1031HO2S Heater Current Monitor Control Circuit Sensors 1

When does Silverado 5.3 go to V4?

Some 2011 Silverado 5.3 engine owners don’t know it, but you can see if your Active Fuel Management is working while you are driving. It’s on your Instant Fuel economy gauge. You will see it switch back and forth from V8 to V4. It will always go into V4 when the road grade is declining or you are slowing to stop.

How to troubleshoot a Chevy Silverado check engine?

To troubleshoot, make a note of which cylinder appears to be misfiring. Then swap that coil for another one on the vehicle. By swapping the coils, you can see if the issue goes away or if it follows the coil, which would indicate that the coil is bad and needs to be replaced. If playback doesn’t begin shortly, try restarting your device.

What kind of engine light is on a Silverado?

Engine Light Is On: 2007-2013 Chevrolet Silverado 1500 – What to Do – 2008 Chevrolet Silverado 1500 LT 5.3L V8 Extended Cab Pickup (4 Door) This free video provides the steps to diagnose and clear a check engine light on a 2008 Chevrolet Silverado 1500 LT 5.3L V8 Extended Cab Pickup (4 Door).

What to do if your Silverado is ignoring the Check Engine light?

If you don’t already have a trouble code scanner, swing by an auto parts store and pick one up or have them run a diagnostic using their own scanning tool. Even if your Silverado is running like usual, ignoring the check engine light can result in costly repairs down the line.

What kind of engine does a 2013 Silverado have?

2013 Chevrolet Silverado 1500 LT 5.3L V8 FlexFuel Crew Cab Pickup Check power steering fluid level Power steering fluid is easy to check and many people (mechanics included) often forget about – learn how here 2013 Chevrolet Silverado 1500 LT 5.3L V8 FlexFuel Crew Cab Pickup Try this cheap fix for leaks

Why is the Check Engine light not coming on?

If the check engine light is not coming on, then that is a good sign. If your dashboard before displayed the check engine light before and now it is not coming on, then the dashboard warning light could have burned out.

What is the oxygen sensor code for a Chevy?

P1137HO2S Bank 1 Sensor 2 Lean Or Low Voltage – Read Our Article On Oxygen Sensor CodesFor Help With This Chevy Trouble Code P1138HO2S Bank 1 Sensor 2 Rich Or High Voltage – Read Our Article On Oxygen Sensor CodesFor Help With This Chevy Check Engine Light Code

Where do I find the trouble code on my Chevy?

These are listed in numerical order for easy searching. When retrieving Chevy trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.

How to clear service engine soon light 1990 to 2002 Chevy?

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How to check trouble codes on a 1994 GM?

Checking trouble codes from your 1994 GM vehicle does not require the use of special equipment, such as a scan tool. Extracting trouble codes from your vehicle lets you track down and diagnose faulty components in an expedited manner. The computer uses the “Check Engine” light located on your dashboard to display the stored trouble codes.

What should I do if my check engine light is still coming on?

Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step. Once it is done, see if the engine check light is still coming on or not. If the check light is off, you are ready to go, but if it is still coming on, get ready by reading the codes with a scanner instead. Let it Go Off Itself

How to read code without scan tool on 1994 GM?

Insert the pointed ends into the furthest two top-right diagnostic connector terminals. After bridging the two top right terminal connections on the diagnostic connector, switch the ignition to the “ON” position. Watch the “Check Engine” light on your dashboard. It should flash once, pause, and flash two more times in succession.

Why does the Check Engine light come on on a Chevy Silverado?

Oxygen sensors can change the way that your Silverado’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.

Are there any problems with the Chevy Silverado 2500?

Chevrolet Silverado 2500 owners have reported 21 problems related to check engine light on (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Chevrolet Silverado 2500 based on all problems reported for the Silverado 2500.

Is the Check Engine light on a 2004 Silverado Z71?

I checked the chiltons book and it says 05 and up have only filters on the sending units and they are not replaceable. Since yours is an 04 its possible your in the same boat too. My 03 has an inline filter in the frame in the area below the drivers seat. According to the chilton’s book yours should too.

What causes a Chevy Silverado engine to misfire?

Keeping in mind that any engine needs air, fuel, and spark for ignition, your Chevy Silverado’s fuel system can often cause the engine to misfire. It can run too lean or rich.

How to reset the security system on a Chevy Silverado?

A Chevy Silverado that has had its Passlock security system enabled will shut down the fuel injectors on the vehicle and will not allow the vehicle to start. Resetting the system may be as simple as using the vehicle key.

When did my Chevy Silverado 1500 start shaking?

Purchased my 17 Chevrolet Silverado 1500 on 11/28/17 and returned it to the dealership on 12/1/17. This was due to a severe shuddering & shifting in the transmission & severe shake in the front end at 70-90mph.

Where is the blinker on a 2003 Silverado?

Should fix your issue. don’t forget, the 2003 Silverado had an extra 194 bulb on the side of the tail lamp as a side marker light.. everybody forgets that one. Yep, they have small bulbs in the corners (the orange part on the front) that everyone usually misses. It’s probably those.

Why does the blinker go fast on my Silverado?

If your car is stock the blinker will blink when it has the right amp draw. If you replaced bulbs and the wrong bulb is in the system it will blink fast.

When to change spark plugs on Chevy Silverado?

P0304 and P0351 are common DTCs associated with faulty spark plugs, but you will know if you need to change the spark plugs if you notice any of the accompanying signs, including rough idle, engine surging, lack of acceleration, and high fuel consumption. Figure 1. A fresh plug versus a worn out one.

What makes the Check Engine light come on on a Chevy Silverado?

Depending on the year and model of your Silverado, your truck can have up to four oxygen sensors. Unfortunately, a problem with any one of them can cause the check engine light to come on—but that’s not all.

Is there a problem with my Chevy Silverado?

Will turn key and it is like no power from battery to starter, but have lights, radio, etc. Turn key again or sometimes multiple times, to no avail. Then, turn it one more time and it starts. Then the next 15 starts, no problem. Sometimes hot engine, sometimes cold. UPDATE: 2-6-14; I sold the truck to my father. He changed the starter.

What does a flashing check engine light mean?

A flashing check engine light is your Chevy Silverado’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire. This flashing light should not be ignored. When your engine is misfiring, it is dumping raw fuel into the exhaust.

What does p0404 mean on an EGR sensor?

Often times code P0404 does not actually indicate that there is something wrong with the EGR valve itself, but actually that the EGR sensor is telling your PCM that the proper amount of EGR needed to flow back into your cylinders and cool them is not present.

What to do if your car has a p0304 code?

Use FIXD to scan your vehicle to verify P0304 is the only code present. If other codes are present, they must be addressed first. Check for loose connectors at the ignition coils or for damaged wiring (specifically cylinder 4). Look for loose engine ground wires as well. These can cause random misfire conditions. Tighten or connect where necessary.

What causes a p0449 trouble code on a Chevy Silverado?

What Causes A P0449 Trouble Code? In the majority of cases, a bad EVAP vent solenoid is the cause of the P0449 trouble code lighting up the check engine light on your Chevrolet Silverado (GMC Sierra). Although a bad EVAP vent solenoid is the most common cause of a P0449 trouble code, in some cases it’s not.

What causes the Check Engine light to light up on a Chevy Silverado?

In the majority of cases, a bad EVAP vent solenoid is the cause of the P0449 trouble code lighting up the check engine light on your Chevrolet Silverado (GMC Sierra). Although a bad EVAP vent solenoid is the most common cause of a P0449 trouble code, in some cases it’s not.

What is the trouble code on my Chevy Silverado?

One of the most common trouble codes with the Chevy Silverado is the P0455 code. This trouble code references a number that is given to you when you plug your Silverado into a OBDII scanner.

How to tell if your Chevy Avalanche has a p0455 code?

P0455 code will typically not be accompanied by any noticeable symptoms other than the smell of gas and the service engine soon light. You may notice the slightest dip in fuel economy as well. You should particularly notice the smell of fuel around the fuel tank area or fuel filler tube. The EVAP…

What are the warning lights on a Chevrolet?

The following are warning lights and indicators found in vehicles built by Chevrolet. Click a link to learn more about each one. They are roughly ordered by importance, which tends to be by color (red, amber, yellow, orange, green, blue, gray). There are nearly 50 of them so search carefully!

What kind of engine does a 1995 Chevy Silverado have?

The 1995 Chevrolet K1500 Silverado was part of the C/K series’ final generation before the name change. Engine and Fuel Capacity A 160 horsepower, 4.3-liter V6 engine came standard with the 1995 K1500.

Why does my check engine light not light up?

If your Check engine light is ON, the easiest way to diagnose this problem is to always check your trouble code memory with an OBD2 scanner. The check engine light will not light up if there is a scheduled service as the service engine soon light.

Is there a 4WD light on a 2000 Chevy Silverado?

Mine is a 2000 Silverado Z-71 Extended Cab. The part number is the longer of the two – 15709327. I believe they used this part for 1999, 2000, and 2001. You can purchase the part, APDTY 012173 4×4, Four Wheel Drive 4WD Transfer Case Selector Button Switch. Replaces GM Part Numbers 15709327, or 19168767, from amazon by clicking the link below.

Is it OK to drive with the service engine soon light on?

It is ok to drive with the check engine light on. Although, you should still have your S10 repaired as soon as possible. It is NOT OK to drive it when the service engine soon light is flashing. A flashing light is letting you know that something is so wrong that continued vehicle operation can lead to permanent damage.

What causes the service engine soon light to come on?

Another possible culprit triggering the “service engine soon” light is misfiring spark plugs. Spark plugs on older vehicles (before 1996) needed to be changed every 40,000 to 50,000 kilometers; on more modern vehicles spark plugs can go to 150,000 km before needing to be changed. Faulty spark plugs can cause your engine to misfire.

Why does my 4WD light come on on my Chevy Silverado?

There is a common problem with 1999-2001 Chevrolet Silverado where the service 4wd light comes on in the vehicle. The light is scary and led me to believe there were major issues with my four wheel drive, but it turns out its a quick, cheap, and painless fix by swapping out the 4wd selector switch.

What does service engine soon light mean on Chevy S10?

Your Chevy S10’s service engine soon light is there to let you know that some sort of problem has been detected with the vehicle. Any vehicles made in 1996 or newer use OBDII codes, which can easily be retrieved from a good code scanner. A flashing service engine soon light is telling you that something needs immediate attention.

Why does my check engine light keep blinking?

When your engine is misfiring, it is dumping raw fuel into the exhaust. This raw fuel can detonate, which causes damage to the catalytic converter and the exhaust system itself. There can be other situations that can cause the check engine light to blink as well.

What to do if your check engine light is not flashing?

If the light is not flashing, check the gas cap. Oftentimes if the gas cap wasn’t tightened enough, the check engine light will display. If tightening the gas cap does not make the light go away, take the vehicle in to have the diagnostic codes looked up.

What are the symptoms of a GM misfire code?

Whether your GM vehicle has a V6 or a V8, if one cylinder or two cut out, it won’t run on 100% engine power and this will cause some of the following consequences (symptoms): The check engine light (CEL) will be on. One or more misfire codes (P0300-P0308) will be stored in your pick up’s PCM memory. P0300 Random Cylinder Misfire.

Why does my Chevy Silverado have a rough idle?

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Is My Car Idling Rough? What are common reasons my Chevrolet Silverado 1500 has a rough idle?

Why is my Silverado 5.3L V8 intermittent?

One other intermittent problem I’ve had since the day the fuel pump went out is it acts the fuel pump is loosing it’s prime, meaning when I go to start the engine I have to spin it over for a few seconds before it will fire up and even then it will sputter a bit and catch up.

What kind of engine light does a Chevy Silverado have?

This free video provides the steps to diagnose and clear a check engine light on a 2004 Chevrolet Silverado 1500 LS 5.3L V8 FlexFuel Extended Cab Pickup (4 Door). The video also provides steps on how to read the 2004 Chevrolet Silverado 1500 LS 5.3L V8 FlexFuel Extended Cab Pickup (4 Door) trouble code About Us Maintenance Parts & Tools Contact

What does a check engine light mean on a Chevy Silverado?

A check engine light can indicate a broad spectrum of problems with your 2004 Chevrolet Silverado 1500. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light.

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Is My Car Idling Rough? What are common reasons my Chevrolet Silverado 1500 has a rough idle?

Why are the spark plugs on my Chevy Silverado not working?

Spark Plugs – One of the absolute most common causes (if not the most common reason that your Silverado may be misfiring) is the spark plugs. Although most modern vehicles use iridium spark plugs, they still need to be changed at the manufacturers recommended interval.

Why are the intake valves on my Chevy Silverado not working?

The Seafoam in the gas would be injected directly into the combustion chamber, and would miss the intake valves completely. It wouldn’t work because our engines are direct injection. The Seafoam in the gas would be injected directly into the combustion chamber, and would miss the intake valves completely.

Can a check engine light go off by itself?

Will the check engine light go off by itself? Yes, The check engine light will reset itself after a fixed amount of time if you fixed the problem in most car models. Usually, this is 10-30 cycles. One cycle is from a cold start until the engine is at working temperature.

When does the Check Engine light come on?

Intermittent Check Engine Light: If the check engine light on your 2004 Silverado 1500 is intermittent, try to take note of the conditions when this happens. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue.

What does a yellow check engine light mean?

In addition to the check engine light, your dashboard may also indicate low oil pressure or overheating issues. Pull over and shut off the engine as soon as you can if these lights also illuminate. Some cars may have a red check engine light to alert you to stop right away, while a yellow light stands for investigation.

Why does my Chevy Silverado have a bad ignition coil?

Although these coils can simply wear down over time, the number one cause of faulty ignition coils is voltage overload caused by bad spark plugs or plug wires. If your scanner shows the P0351 code, begin your troubleshooting with the ignition coil. To troubleshoot, make a note of which cylinder appears to be misfiring.

Can a check engine light get clogged up?

The EGR valve can get clogged up or fail entirely. If you’re even slightly mechanically inclined, you can remove the valve, clean it up, and reinstall it in a relatively short amount of time. If the valve needs to be replaced, expect to pay at least $125 for a brand-new, OEM-quality unit.

What does the Check Engine light on a Chevy Colorado mean?

See all problems of the 2009 Chevrolet Colorado . There are several forum online each pretty much expressing the same problem. At the 100,000 mile mark the check engine light comes one indicating the #2 coil is bad. This doesn’t seem to be the problem nor is it in the injectors.

The check engine light is tied into your car’s onboard diagnostics system, and it’s designed to light up (usually in yellow) whenever something goes wrong with this complex collection of components and sensors. Problems in the electronic control system are stored in a “trouble code” to identify the source of the issue.

Why does my check engine light keep flashing?

Use it to find out exactly why your vehicles computer decided to flash this light. The ignition system is the most common reason that the check engine light will flash. The ignition system consists of spark plugs, plug wires, and the ignition coil packs (older vehicles have a distributer that has the same function as coil packs).

Is it safe to drive with the Check Engine light on?

It could also mean your catalytic converter has given up the ghost. The check engine light means there’s a problem somewhere in your emissions system. Regardless, you’re safe to drive for now as long as the car isn’t performing strangely. Just have the check engine light checked and the problem repaired.

The Check Engine Light may come on if you’re having issues with your TPS. This isn’t always the case though, so don’t wait for the Check Engine Light to illuminate before you get any of the above symptoms checked out. Have your vehicle checked for trouble codes to verify the source of the problem.

Why is my Check Engine light on in my Bugatti Chiron?

The monstrous Bugatti Chiron has 16. No matter how many you have though, a malfunctioning coil will almost certainly trigger the check engine light, but remember, if your car burns diesel, you have neither ignition coils nor spark plugs.

What was the issue with my 1997 Chevy P / U?

Having an issue with starting a 1997 Chevy P/U. Issue started a few months back when after having the truck running for a while then stopping it for a short time and then restarting, the starter would start, stop, start and then catch.

Why is my Check Engine light still on after filling up?

The cap is a crucial part of a car’s fuel delivery system. It notably prevents gasoline fumes from leaving the fuel tank, and it helps keep the whole system under the correct pressure. If your check engine light turns on immediately after a fill-up, pull over and make sure the cap isn’t loose — or still on your car’s roof.

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.

Whenever the vehicle detects that something may be wrong–whether it’s an emissions-related problem, cooling system issue, engine problem or something as simple as a loose gas cap, in some cases–the Check Engine light will appear.

What’s the fuel pressure on a 1998 Chevy k1500?

Here are the tests I’ve done so far fuel pressure test, fuel pressure 160psi while running, then shut off for 20 min and fuel pressure was at 155 PSI. Dry Compression test on all 8 cylinders between 150-160 psi.

WHY IS YOUR CHECK ENGINE LIGHT BLINKING? All new vehicles come with an on-board diagnostics port which hooks up to the vehicle’s computer.

Why does my Check Engine Light never come on?

The C/K line includes pickup trucks, medium-duty, and heavy trucks. When I turn the ignition on, all of the lights on the dash turn on and then go off. But the check engine light never turns on. How do I make it come on?

What to do if your Chevy 1500 won’t start?

The passlock sensor voltage reading has changed & you can relearn it to the PCM & you can start the truck again. To relearn, turn the ignition key to the on position for 3 10 minute cycles, turning the key to the off position for 5 seconds after each 10 minute learn.

What to do if your check engine light is blinking?

If the light is flashing, take your vehicle in IMMEDIATELY to be diagnosed and inspected–a flashing light indicates a serious problem with one of your vehicle’s components. If the light is not flashing, check the gas cap. Oftentimes if the gas cap wasn’t tightened enough, the check engine light will display.

What kind of vehicle has a check engine light?

This page will list all the Check Engine Light questions and answers asked of us pertaining to Chevy vehicles. Some Chevy vehicles include Silverado, Suburban, Cavalier, Trailblazer, Tracker, Tahoe, Cobalt, and more. 2003 Chevy Silverado 1500 P0327 – I accidentally sank the truck in a creek and now I have a P0327 code, what is the problem?

What does the blinking 4 wheel drive indicator mean?

So what is that 4 wheel drive indicator blinking on your dashboard means? The purpose of the 4 wheel drive light is to indicate when you have engaged 4WD mode by selecting 4H. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly.

What does it mean when your engine light comes on?

A flashing light indicates that the problem is serious and if not taken care of immediately may result in damage to the vehicle. We’ve compiled a list of best practices for you if you Check Engine Light ever comes on:

Can a check engine light come on when your gas tank is low?

Bottom line: Yes, if you see a pattern in which the engine light comes on during periods that your tank is low, then turns off right after you fill it (and tighten the gas cap!), one of the above issues is probably going on.

Why does my check engine light come on every time I fill up?

Loose-Fitting Gas Cap. Sometimes a poor seal on your gas cap can cause the Check Engine light to come on. It’s important to make sure the gas cap is tightly closed every time you fill up your vehicle with gas.

Why is the engine light on on my 2003 Chevy Silverado?

I have a 2003 Chevy Silverado with a 6.0 engine and automatic transmission and the engine light came on. I put a scanner on it came up with the code po332B Knock Sensor 2 circuit low frequency. I need to know where the sensors are so I can change them out or check any wiring problems.

Can a bad fuel pump throw a check engine light?

Usually, a failing fuel pump will produce one of the following systems that could potentially mean the bad fuel pump will throw a check engine light. One of the first symptoms that you will notice with the fuel tank turning bad or being damaged is a loud whining sound that is coming from under your hood.

Why does my car have a check engine light?

My car has an automatic transmission. When the fuel overflowed, the fuel system most likely caused the vapor recovery and tank vent to become flooded with liquid fuel. This flooding of the vent system may cause the computer to sense a problem in the fuel tank and purge valve function and set a code, turning on the Check Engine Light.

Why is my Check Engine light on after the fuel tank overflowe?

Went to Costco’s filled up tank like I usually do on Sunday pump did not shut off show’s over run over on the ground my wife was driving the car it died a couple of times then it was okay and now the engine light came on did it hurt anything My car has 24500 miles. My car has an automatic transmission.

How do you turn off the brake light on a Chevy Silverado?

The only way to turn the brake light off is to restore proper line pressure to both brake circuits when the pedal is pushed. If your Silverado is having trouble stopping, or noticeably leaking fluid, don’t drive it. Just have it towed to a mechanic.

What to do if your Chevy Silverado Wont Stop?

If your Silverado is having trouble stopping, or noticeably leaking fluid, don’t drive it. Just have it towed to a mechanic. If you mess up fixing your engine, the vehicle does not move. If you mess up fixing the brakes, it doesn’t stop.

What should I do if my warning light goes off on my Chevy Silverado?

If oil level is low and engine oil was added, only continue driving if the warning light has gone off. Depending on your version of Chevrolet Silverado, you may receive the warning text message: ‘OIL PRESSURE LOW STOP ENGINE’. Stop the vehicle, switch off the engine and follow the above advice.

What does the ABS light mean on a Chevy Silverado?

The ABS light is different than the brake warning light itself. The brake light indicates that there is a problem with the physical braking system and that your Silverado is unsafe to drive. Yes, you can drive your Silverado with the ABS light on. Is it safe?

What does the temperature gauge mean on a Chevy Silverado?

For the coolant temperature gauge, it may display temperatures in Fahrenheit or Celsius. If the needle on the temperature gauge moves into the red area, immediately pull off the road and switch off the engine. If this occurs under normal driving conditions, it may indicate low engine coolant levels or a leak in the system.

What causes a flashing check engine light on a Chevy Silverado?