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gas tank pressure/ vaccum


 
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el_dubya
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Joined: 20 Sep 2005

PostPosted: Sat May 27, 2006 5:35 am    Post subject: gas tank pressure/ vaccum Reply with quote

My friend just bought an 89 yj with a 4.0L in it. She said when she took the gas cap off the other day a rush of air came out. I didnt think much of it, then I open the cap last night and there was a lot more air than i expected. I THINK it is air comming out but it may be air rushing in like the tank is under vaccum. I'm going to compare the gas cap to like a radiator cap type set up. So whats your opinion? Does the tank vent through the cap or somewhere else? Or is this even the problem? Thanks.
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Dub

'98 TJ SE
15x7 ProComp Series 51 Rock Crawler Wheels
31x10.50 General Grabber AT2's
Taurus Fan
Uniden PC68 Elite CB
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el_dubya
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Joined: 20 Sep 2005

PostPosted: Thu Jun 01, 2006 10:05 am    Post subject: Reply with quote

ok, I had a chance last night to look at the jeep again, and it is air coming out of the tank, so it somehow is building up pressure. ideas?
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Dub

'98 TJ SE
15x7 ProComp Series 51 Rock Crawler Wheels
31x10.50 General Grabber AT2's
Taurus Fan
Uniden PC68 Elite CB
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shvlhd666
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Joined: 01 Jan 2005

PostPosted: Sat Aug 05, 2006 11:08 pm    Post subject: Reply with quote

That is normal. It is supposed to do that.
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