Gas tank vacumn
02-21-2008, 12:21 PM
#1
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Join Date: May 2000
Location: Budd Lake NJ, USA
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Car: / 89 IROC /
Engine: 305 TPI
Transmission: 700R4
Gas tank vacumn
I seemed to have lost the vacumn in my gas tank. since I've owned the car, whenever I took off the cap, I would hear the air escaping, now nothing. Anyone have a clue as to where I should start looking?
What caused the vacumn in the first place? Was it important for something?
What caused the vacumn in the first place? Was it important for something?
02-21-2008, 02:46 PM
#2
Supreme Member
Re: Gas tank vacumn
vacuum is bad
means the vent line from the tank to the charcoal canister was clogged somehow
vaccum can prevent fuel from being pumped out of the tank if the vacuum pressure goes too high
bad deal
seems fine now if it has none
good deal
means the vent line from the tank to the charcoal canister was clogged somehow
vaccum can prevent fuel from being pumped out of the tank if the vacuum pressure goes too high
bad deal
seems fine now if it has none
good deal
02-21-2008, 03:12 PM
#3
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Join Date: May 2007
Location: Richmond VA
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Car: 87 Camaro Z28
Engine: LB9
Transmission: 700-R4
Axle/Gears: 3.23
Re: Gas tank vacumn
so wait, if u do hear the escaping air, thats a bad thing? cuz i hear this sound when i remove my gas cap. what exactly can it cause, and how do u get rid of it?
02-21-2008, 03:31 PM
#4
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Car: / 89 IROC /
Engine: 305 TPI
Transmission: 700R4
Re: Gas tank vacumn
Lets wait for more responses, I bought my car new so I've been experiencing this for almost 2 decades. Car always ran fine.
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