Gas Cap
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Supreme Member
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Joined: Sep 2009
Posts: 1,591
Likes: 5
From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Gas Cap
Hi guy's and gal's. I don't know if i never noticed it before or if i just am having a brain fart, but today when i removed my gas cap 3 times, it has a whoosh. Now, i think it's sucking air in (i think?) Is this normal or do i need a new cap? The car runs like a top and the temp today is about 85*. It's not a daily driver and i haven't filled it in a while until today when i noticed it it. So now half full or full it whooshes when you remove the cap. Please enlighten me of my shortcomings 
My wife just told me her 2004 impala does the same thing.
My wife just told me her 2004 impala does the same thing. 
Thread Starter
Supreme Member
iTrader: (2)
Joined: Sep 2009
Posts: 1,591
Likes: 5
From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Gas Cap
You guy's are probably right, I just couldn't remember my cap ever doing that. Maybe it's cause I'm 55 and have CRS. 
Last edited by red rock; Jul 30, 2014 at 06:20 PM.
Supreme Member
Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Gas Cap
It only gets better from here I'm afraid.....
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