At Johnnie's Car Care Center in Roswell, we know that some of the most elusive issues with any car, truck, or SUV are often caused by the simplest of malfunctions. While you might consider a gas cap fairly innocuous, it can actually malfunction too, prompting a check engine light on your dashboard.

A gas cap seems like an ordinary cap... it’s either there doing its job, or it isn’t. In fact, a gas cap serves other purposes besides keeping gas in the tank. Gas caps are a part of your emissions system, as well as a key component to regulating pressure and venting within your fuel tank.

If a gas cap becomes blocked or damaged, it won’t do its job and can trigger a diagnostic code, causing your check engine light to illuminate. First, you should ensure that the cap is on correctly and tightened down, as a loose cap won’t operate as intended. If the check engine light doesn’t turn off after that, have the code read...it’s possible that the gas cap needs to be replaced altogether.

If your check engine light is on, and you aren’t sure why, or for any of your other maintenance and repair needs, have one of our technicians take a look. Our team of expert mechanics has the knowledge, equipment, and ability necessary to service any type of vehicle, no matter the reason. For the best auto repair and maintenance shop in Roswell, call or stop by Johnnie's Car Care Center today.

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Schedule your appointment today CALL: (575) 622-6389