Check Engine Light Don't Panic! Check Your Gas Cap First

The cap check light comes on when there is air leak somewhere in your system - it might be tank or cap or something else. 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. Check your gas cap if the light comes on suddenly. A loose gas cap is a ... The test will show "Rejected" even if the check engine light is off. 1996 ... Yes, it's possible that a loose gas cap can cause your vehicle to trigger a CEL (Check Engine Light). 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 ... What causes this warning, as well as the check engine light to come on, is a fault with the fuel tank emissions/vapor emissions as a small leak has been ... Gas Cap Problems: Common Symptoms and Step-by-Step Fixes Is your "Check Engine" light on or your car's fuel efficiency dropping? Yes, a Gas Cap is usually the first thing you check and or replace, especially if you think it's having problems. Everyone on this forum that ... Just disconnect the battery for a few minutes, CEL will reset. Otherwise it could take a hundred or so miles. Aftermarket gas caps and Tacomas ... A loose gas cap Is the most common cause of a check engine light. Make sure to check your gas cap when you fill up your car and turn your ...