LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Fuel Smell

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Old May 30, 2012 | 06:06 PM
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rich5368's Avatar
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Default Fuel Smell

When I take the car on road trips to lower elevation it seems to have a venting problem or something. If I roll down the window after a few hours of driving I get a fuel smell. Any one else had this problem.
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Old May 30, 2012 | 10:53 PM
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I have the same problem on 93 t/a. On my car it's building pressure in the fuel tank. When you take the fuel cap off is it releasing pressure from the tank?
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Old May 30, 2012 | 11:05 PM
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Yea it does that too. I wouldn't think it was a problem except for the smell. I mean at 80mph when you roll the window down you can smell it. I have no clue as to what it is. It only does it when the weather is hot so I'm assuming thermal expansion has something to do with it.
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Old May 31, 2012 | 01:57 PM
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I would check the EVAP system, the charcoal canister is probably bad, allowing charcoal to clog the purge line and possibly damage the purge solenoid. Make sure the line is clear and that the canister is in good shape. My 95' builds a lot of tank pressure and I can hear charcoal bits in the purge line... I just ordered a new canister to fix this, I hope the purge solenoid isnt bad as well. I may just delete the entire system. (I am assuming that the 94' cars have the same set up as 95+??)
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