Why does my gas cap keep loosening on my '02 Passat?
My gas cap keeps coming loose even though I make sure to turn it good and tight, click, click, click. I can tell immediately when it starts to loosen, the car starts to run really rough and on a hill there will be no oomph (feels like we're not going to make it). Stop the car, turn it off, take off the gas cap, put it back on, and then we are good to go again, but for increasingly shorter distances. I bought a new gas cap. Very same thing happens.
Here we go again.. the build quality of VW is atrocious.... Probably stripped the threads on the car... Should not have happened... It's not your fault... Terrible... I would try and gently put the gas cap on see if it works and sell the car... Don't over tighten the cap.
Buy a new cap, not possible to strip the threads.
F_O_R -. Hmm, if you had "CAREFULLY" read the original posters message above, you would have seen that he purchased a new cap and the same thing happened.... YES, I agree that it seems very unlikely that the threads are stripped, but, with VW anything is possible.
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