Fuel tank lid open and whooooosh!
#1
#2
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Location: Pacific Northwest USA
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If you look on the fenderwell behind the right front tire you'll see the vent lines and vapor canister.
One the the small steel pipes is clearly routed in a horizontal fashion....that's the one that goes back to the fuek tanks. A check valve is attched to this pipe with a vacuum hose. Remove the valve and/or disconnect it so that the pipe is open to atmosphere.
Let us know if the whoosh goes away.
I should note that a small whoosh is normal. But yours sounds like a really big whoosh!
Cheers
DD
One the the small steel pipes is clearly routed in a horizontal fashion....that's the one that goes back to the fuek tanks. A check valve is attched to this pipe with a vacuum hose. Remove the valve and/or disconnect it so that the pipe is open to atmosphere.
Let us know if the whoosh goes away.
I should note that a small whoosh is normal. But yours sounds like a really big whoosh!
Cheers
DD
#3
Replacing the little fuel vapor pressure valve Doug mentioned cured the 'whoosh' from my passenger side tank. Finding a replacement valve can be tough; I found a used one.
I've read that a temporary (or permanent if you prefer) solution can be to drill through the valve to open the blockage. The valve won't work as designed anymore; but I think the only detrimental effect is to reduce the level of fuel vapors that get scrubbed by the charcoal canister.
I've read that a temporary (or permanent if you prefer) solution can be to drill through the valve to open the blockage. The valve won't work as designed anymore; but I think the only detrimental effect is to reduce the level of fuel vapors that get scrubbed by the charcoal canister.
#6
I tried and tried to get mine cleaned out and working, but it was no use. Finally I drilled thru the insides. Vapors still go to the canister, just no more check valve. This also stopped the fuel smell I was getting in the trunk after long runs.
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