Why my check engine light is on – Gas Cap

Why my check engine light is on – Gas Cap

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finalvini 105 Rep.

Check engine light is on why?

Check engine light can be triggered by a missing or untightened fuel tank cover


As silly as this may sound, the gas cap maintains the pressure in the fuel tank and if some reason this is missing or not tightened properly the check engine light can come on and also prompt evaporation of fuel from the tank (now you shouldn’t park on the road side to buy BOLE 🙂

Always make sure you fasten the cap until you hear the click sound.


For best results, taking your car to a trusted mechanic for his evaluation my be in your best interest to get to the root of the problem before wearing yourself out trying to address the issue through a costly trial-and-error process – which could result in new problems if not properly handled by someone with proper knowledge and experience.

Take advantage of our top ranked professionals here!!!

finalvini edited question


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