what is a pre-vent gas cap?

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what is a pre-vent gas cap?

2006-11-14 14:00:11 · 3 answers · asked by davidclinton@sbcglobal.net 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet

3 answers

It is vented to allow expanding gas to vent on hot days

2006-11-14 14:07:37 · answer #1 · answered by ? 4 · 1⤊ 1⤋

Its a cap that allows some air flow without losing any liquid to prevent vapor lock and high pressure build up.

2006-11-14 14:09:50 · answer #2 · answered by Anonymous · 0⤊ 1⤋

Stant also developed the Prevent cap which allows pressure built up in the fuel tank on hot days to be released gradually when the cap is opened. This prevents fuel from erupting and spraying out on the motorist.

2017-03-15 23:10:59 · answer #3 · answered by J. B. 1 · 0⤊ 0⤋