Gas Cap Woes The Surprising Cause of Check Engine Light Woes

A bad or loose gas cap will cause the check engine light to come on. Making sure that the gas cap gasket is OK, tightening the cap at least ... Technically, yes, but it's not recommended. The gas cap's rubber seal maintains proper pressure in the fuel tank, which is crucial for reducing emission fumes ... Sometimes, the reason why your Volkswagen check engine light is on is simply due to a loose or cracked gas cap. This can cause fumes to release in LaGrange, ... There is no gas cap code. There are a few evap system leak and/or performance codes. You guessed at a gas cap, and that's obviously not it. A ... These fuel vapors may trigger errors in the emissions system, which would light up the check engine light. Dirt and Grime that gets into the fuel tank could ... If the check engine light comes on you should get it checked as ... Hyundai gas cap warning light. hyundai-warning-lights-fuel-cap. In ... The Check Engine light may come on some time after filling up if your gas cap is not closed properly. If you do find that the gas cap wasn't ... The gas cap light came on. Checked, and it was well secured. Now the check engine light is on. Did some internet searches and not sure there is a clear cause ... In addition to a check engine light, some vehicles have a “check fuel cap” or “check gas cap” light. This light turns on when a problem is ... The evaporative emission system temporarily stores fumes in the vapor canister, until conditions are correct. When sensors inform the power control module or ...