Can a fuel cap cause check engine light?
Fuel System Issues 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.
How do I get rid of the check engine light on my gas cap?
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 to check check engine light gas cap?
Check The Gas Cap Open the gas cap door. If it is dark, take a flashlight with you. You need to be able to see any damage or crack on the gas cap, so you’ll need additional lighting. Grab the gas-cap handle. Twist it anti-clockwise to open it.
Do you need a gas cap at AutoZone?
The real test is finding the right match for your tank and one that covers all the bases in terms of regulations and legal requirements, details which staff members at your local AutoZone store can help you out with. There are a few other options you might want to consider as well, including locking fuel caps.
What to do if your check engine light is flashing?
Once you’ve noticed the check engine flashing, don’t worry. If it’s for gas cap failure, the fixing will take a mere few minutes. Turn off the engine vehicle. Open the gas cap door. The door is usually locked, you’ll find a push button to unlock it.
How do I get a cap on my gas tank?
Simply set the Year Make and Model of your vehicle above and shop gas caps, fuel doors and other fuel delivery components specifically designed for a custom fit. Enjoy Free In-Store Pickup, Free Curbside Pickup & Free Next Day Delivery on eligible fuel tank caps and other essential auto parts.