How To Fix Check Engine Light From Gas Cap

If the gas cap seal becomes damaged or worn it may cause fuel vapors from the gas tank to leak from the filler neck. The door is usually locked you ll find a push button to unlock it. I put together a video discussing a problem my neighbor had with nissan maxima four door sedan after they filled the fuel tank.

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If you find that the light keeps coming on and goes off again once you tighten the gas cap then your gas cap is too loose.

How to fix check engine light from gas cap.

This may result in a gasoline odor from the vehicle as a result of the escaping vapors. If it s for gas cap failure the fixing will take a mere few minutes. Once you ve noticed the check engine flashing don t worry. Check engine light comes on.

The check engine light should go off after you drive for several minutes if the light was caused by a loose gas cap. You can either tighten the cap and wait for the system to reset itself when it determines the problem is fixed or you can use an obd ii code scanner to manually reset the system. Open the gas cap door. An illuminated check engine light is another symptom of a potential issue with the vehicle s gas cap.

Turn off the engine vehicle. If your gas cap is not properly attached you may see a check engine light or a loose cap warning light on the dash. Pay attention to the dashboard after the check engine light experience. Open the gas cap door.

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