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Old 02-08-2019, 03:38 PM   #21
697498chevy
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Join Date: Jan 2009
Location: South Carolina
Posts: 261
Re: Correct Gas Cap? Too much pressure!

The #10623 cap doesn't leak on right turns on my 69 truck . If I fill it up to the neck and park it in the sun it'll build up pressure and probably leak . I don't fill it all the way up . My truck does have a LMC tank with the vent line plugged . Hope this helps .
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