Check engine light...got it reset...CODE said "unable to pull vaccum from tank"
06-03-2004, 08:25 AM
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Check engine light...got it reset...CODE said "unable to pull vaccum from tank"
What does that mean? Autozone said it had to do something with my gas cap? The code got erased several times now, it would come back after 3-4days.
Where/what should I check for?
Where/what should I check for?
06-03-2004, 09:30 AM
#2
Re: Check engine light...got it reset...CODE said "unable to pull vaccum from tank" (integraboi1010)
So it means your gas tank isn't airtight like it should be.
Loose gas cap.
Cracked/leaking gasket on gas cap.
Any of several hoses & valves around the fuel fill pipe.
Mounting flange for fuel pump (top of tank), or it's gasket.
A few vacuum hoses & valves related to the EVAP system.
Maybe even a leak in the gas tank itself...
For several pages of detailed procedures to check this stuff, look for a Helm shop manual.
Loose gas cap.
Cracked/leaking gasket on gas cap.
Any of several hoses & valves around the fuel fill pipe.
Mounting flange for fuel pump (top of tank), or it's gasket.
A few vacuum hoses & valves related to the EVAP system.
Maybe even a leak in the gas tank itself...
For several pages of detailed procedures to check this stuff, look for a Helm shop manual.
06-03-2004, 11:45 AM
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Re: Check engine light...got it reset...CODE said "unable to pull vaccum from tank" (JimBlake)
I'd start with a new gas cap, cheap and may fix problem. I have seen serveral cars come into may bay with same problem and a new cap fixed it. This may not fix it but a easy place to start.
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