If it is too much pressure either the in-tank screen is partially clogged or your gas cap vent isn't working correctly. In which case you need to replace the cap. I would experiment with a different cap if it really bothers you. The main effect would be poor performance if either were the case.

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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