Check Engine Light Gas Cap Woes - Don't Let a Loose Lid Ruin Your Day

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 was caused by a loose gas cap, it usually turns off after tightening it and then driving your car for several minutes. I've had a weird intermittent check engine/VSC light problem. I've noticed that it comes after getting gas and sometimes goes away after getting gas. Yes, it's possible that a loose gas cap can cause your vehicle to trigger a CEL (Check Engine Light). The evaporative emission system temporarily stores fumes in the vapor canister, until conditions are correct. When sensors inform the power control module or ... 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 ... ... Cap Light with no special tools, GAS CAP CHECK WARNING LIGHT ON? FIX ... EASY: Turn Off Check Engine Light for FREE. TightWadDIY•1.8M ... It is the most common of about 100 reasons as to why the Check Engine light comes on. Always make sure you twist till it clicks. The gas cap will throw a check engine light if it needs to be replaced, and sometimes it'll cause one because it wasn't tightened enough after ... 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 ...