What does it mean when check fuel cap light comes on?
What does it mean when check fuel cap light comes on?
Simply put, if your fuel cap light is on, it means that the computer has detected a leak in the system, typically from a loose gas cap. If this light comes on while driving, pull over in a safe spot and re-secure the cap. Continue driving normally with the light illuminated and it should go off within a day or two.
How do I reset my fuel cap warning?
How to Reset the Warning Light Gas Cap That Is Loose or Missing
- Turn off your vehicle’s engine.
- Step to the gas cap door.
- Replace the gas cap.
- Close the gas cap door.
- Use an OBD-II code scanner if the warning light does not disappear.
- Continue driving the vehicle.
How do you reset the gas cap on a Jeep Grand Cherokee?
To reset the gas cap light in your Jeep Grand Cherokee, turn the vehicle off and replace or tighten your gas cap and then reset the warning light using an OBD-II scanner plugged into the port beneath your steering column.
How do I fix the gas cap light on my Jeep Wrangler?
To reset the gas cap light in your Jeep Wrangler, turn off the engine and push the button to unlock the door to the gas tank. Open the door, remove the cap, put the cap back on, and close the door. The light should reset.
Why is my gas cap light on Jeep Grand Cherokee?
If your Check Fuel Cap light comes on, it may simply be that you blanked and forgot to put the cap back on the tank. Fuel cap is not securely fastened: The Check Fuel Cap light can come on even if the gas cap is on. If the fuel cap is not completely fastened, the vehicle will not recognize that the cap is on.
Can a gas cap cause engine light to come on?
Something as simple as forgetting to replace the gas cap could cause your “check engine” light to come on. This is because the gas cap keeps vapors from escaping the fuel tank. A loose or broken gas cap can dramatically reduce fuel efficiency and increase emissions.
What problems can a bad gas cap cause?
If the gas cap seal becomes damaged or worn it may cause fuel vapors from the gas tank to leak from the filler neck. This may result in a gasoline odor from the vehicle as a result of the escaping vapors.
Does cel come on when the fuel cap is tight?
If it does, then likely the cap was not the problem. On the 2014 Cherokee trailhawk I used to own it said on the dash something like tighten fuel cap. According to manual cel would come on if problem not fixed for x amount of cycles. Think it was 4 or 5.
Can a loose gas cap cause a cel light to go out?
So if you have a CEL/SES/MIL and it was caused by the gas cap being loose, and you have now sealed the gas cap properly, it may take several days before the test is reperformed and the light will go out. Or, you could clear the code and extinguish the light, and see if it comes back. If it does, then likely the cap was not the problem.
Do I need to check the gas cap?
So, if you just have CEL/SES/MIL, if doesn’t hurt to check the gas cap, but you really need to read the OBDII codes and see what they are and troubleshoot from there.
What is the OBDII diagnostic code for a gas cap leak?
If you did, then there would be a stored OBDII Diagnostic code, it could be anyone of a 1000 codes. If you have a code for an Evaporative Emission Systems Leak, codes P0454, P0455 or P0456 or others, then there is a leak in the Evaporative Emissions Systems, the gas cap not being sealed is only one of many possible causes for these codes.
