How Long Does a Fuel Filler Cap Last?

Having the right amount of gas in a car is vital in cranking and running the vehicle. Each of the components in the fuels system play a vital role in ensuring that the car runs as it should. The filler neck of the gas tank runs to the side of the vehicle and is where you will put in your gas. On the top of this filler neck is the fuel filler cap, which helps to keep water out of the gas tank. This part of the car is used on a constant basis, which is what leads to it becoming damaged over time.

In most cases, the fuel filler cap on a vehicle will have a seal under where the threads are attached. This seal helps to keep the moisture out of the gas tank. As time goes by, the seal will begin to deteriorate due to wear and tear. Usually, the seal will begin to dry out and will break apart. Not having this seal on the gas cap will lead to increased amount of moisture getting into the gas tank and wreaking havoc on the engine. Gas caps are designed to last for about 100,000 miles. In some cases, the gas cap will deteriorate at a rapid rate due to abnormally harsh conditions.

Taking the time to inspect the fuel filler cap on occasion will allow you to figure out if there are any issues that need to be addressed. If you notice that the seal is broken or if the threads on the cap are stripped, then a fuel filler cap replacement will be needed.

The following are some of the things to look for when it is time to replace the fuel filler cap.

  • The Check Engine Light comes on and stays on
  • The car will not pass an emissions test
  • The seal on the cap is broken or missing
  • The cap is completely missing

Noticing the signs that the fuel filler cap is damaged and acting quickly can help to reduce the amount of damage that is done.


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Jay

38 years of experience
1035 reviews
Jay
38 years of experience
Volkswagen Passat L5-2.5L - Gas Cap - San Jacinto, California
Jay provided Great service, he was very Knowledgeable with issues regarding my car. Explained what he did, and recommendations of future services needed. Will definitely use jay again, and looking forward to booking him to service our other car. Thank you Jay
Mini Cooper - Gas Cap - Redlands, California
For a while it seemed that Jay had hit a "snag" but stuck with the problem and fixed it! I admire his "stick to itness."

Brian

24 years of experience
818 reviews
Brian
24 years of experience
Chrysler PT Cruiser L4-2.4L - Gas Cap - Jacksonville, Florida
Competent and kind. He understood my difficulties hearing and made adjustments so that I would understand what he had done and what would need to be done/checked in six months. I will ask for him again and I will recommend your company based upon Brian's professionalism.
Chrysler 200 - Gas Cap - Jacksonville, Florida
Brian listened to all the concerns I had with my car, he seemed very knowledgeable , and he also got the job done pretty quick.

Tinashe

14 years of experience
781 reviews
Tinashe
14 years of experience
Jeep Wrangler V6-3.8L - Gas Cap - Atlanta, Georgia
Tinashe was wonderful. He showed up early, fixed everything, gave me a few suggestions for one item that couldn't be fixed today. Will definitely request him again.

Tony

36 years of experience
79 reviews
Tony
36 years of experience
Toyota Tacoma L4-2.7L - Gas Cap - Atlanta, Georgia
Tony was prompt, professional, and saved me some money by trying the less expensive maintenance option first. Very happy with the service!

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