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gas cap pressure release??

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Old 12-06-2008, 03:12 PM
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gas cap pressure release??

does anyone take off there gas cap and here the hissing from the pressure release?? i use to have that but for sum reason i dont have that anymore im wondering y? anyone have any info let me know
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Old 12-06-2008, 05:13 PM
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you have a vacuum leak somewhere see you are supercharged pressure test for any boost leaks or check evap canister for any broken hoses
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Old 12-06-2008, 09:54 PM
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yeah...get it once every now on. Sometimes when i go to get gas, the cap is looser than i left.
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Old 12-07-2008, 09:45 AM
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are u sure 10 psi?? i dont wanna rip apart my car and start fixing hoses and stuff if it isnt that??
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Old 12-07-2008, 09:45 AM
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btw ive been smelling gas latly like in and around the car...
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Old 12-07-2008, 10:13 AM
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Perhaps a leak somewhere. Best thing to do is to put your car on a lift and inspect the hoses and under the car. Never know what you might find.
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Old 12-08-2008, 07:59 AM
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It could be that the cap is no good and need a replacement. Back in early Nov. '08, I kept getting ECU codes related to the car EVAP system. I checked the valves and hoses and couldn't find anything wrong. At about the same time, I noted that the gas cap stopped hissing whenever I opened it to refuel. I replaced the cap and the EVAp problems went away.
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Old 12-08-2008, 10:23 AM
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funny thing is i just replaced the cap..with one from napa...i didnt get the oem one.
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