Check Engine Light A Gas Cap's Cryptic Message Deciphered

This MotoRad Fuel Tank Cap fits your 1967 GMC C35/C3500 Pickup and is perfect for a tune up or performance upgrade. . Visit Orem Toyota for high-quality Toyota cars, professional car service, and genuine Toyota parts, serving Lindon, Vineyard, Pleasant Grove, and more. 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 ... Disclaimer: Do not remove your radiator cap while the engine is hot. ... check engine light. Besides replacing a head gasket, you will also ... Simply put, if your fuel cap light is on, it means that the computer has detected a leak in the system, typically from a loose gas cap. If this ... The Smog Check failure must not be due solely: To an ignition timing adjustment, or. A failed gas cap function test, or. A tampered emissions control system ... The first thing you should check is the gas cap. Turn off the ignition, pop open the filler door, and inspect the gas cap in detail. While a loose gas cap can indeed cause the check engine light to come on, it is typically not the culprit behind a blinking warning. If your check engine light ... “check gas cap” is simply the pcm telling you that the evap system won't hold the correct amount of vacuum for the specified time frame. Simply remove your gas cap and put it back in place. Turn your car on, and the engine light may already be reset. If not, it might take a few cycles of turning ...