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

Why do I smell gas?!?!

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Old 02-28-2010, 01:36 PM
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Default Why do I smell gas?!?!

93 Formula LT1... For some reason every time i'm driving the car or parked or something I can smell gas from it.. Time and time again I've check'd the gas cap and nothing.. can still smell it.. what could it be??
Old 02-28-2010, 01:47 PM
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Can you pinpoint where the smell is coming from? Possible sources include the charcoal canister in the driver side quarter panel, broken EVAP purge fuel line, etc.
Old 02-28-2010, 01:52 PM
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I can smell it in the car on the driver side.. but not by the gas tank..
Old 02-28-2010, 03:00 PM
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EVAP is clogged with charcoal from a busted EVAP cannister.
Old 02-28-2010, 03:16 PM
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from the driver side? stop eating beans....
Old 02-28-2010, 03:35 PM
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I bought a used Firebird that smelled like gas. The previous owner had drilled a hole into the tank when he mounted the aftermarket stereo amp with screws. Moron.
Old 02-28-2010, 04:29 PM
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Originally Posted by wrd1972
EVAP is clogged with charcoal from a busted EVAP cannister.
ok so what do i need to do.. replace? delete? what..?
Old 02-28-2010, 04:37 PM
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just got back from a cruise and code 32 came up.. egr code.. this with the same problem?
Old 02-28-2010, 07:31 PM
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Originally Posted by importben
just got back from a cruise and code 32 came up.. egr code.. this with the same problem?
I've got this too.
I think the previous owner deleted the EGR, no wonder I couldn't pass emissions!

Are you running cats? lol.
Old 02-28-2010, 08:00 PM
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My car almost always smells of gas, but never have been able to figure it out or pinpoint it.....how can you check your charcoal cannister or evap lines? Can you see it from the bottom?
Old 02-28-2010, 10:33 PM
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no.. no cat. took it off but it was gutted when i took it off. didn't know that.. and never had this code once or more before but it went away for the past like 3 months and came back today all of a sudden.. idk whats wrong.. i tried starting it earlier and it idle'd around 3-400 and died. happened twice.. until i finally gave it gas to stay on.. then after a minute it stayed on.. and this was after the 30 min cruise..
Old 02-28-2010, 10:41 PM
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If you can check all the fuel lines and vacuum lines make sure nothing is disconnected or broken. Check that hose going to the FPR.

Is there any indication that fuel has leaked onto the ground where you have parked?
Old 02-28-2010, 10:47 PM
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Originally Posted by happysem
I've got this too.
I think the previous owner deleted the EGR, no wonder I couldn't pass emissions!

Are you running cats? lol.
EGR is exhaust gas recir. If you smell fuel You would need to look at the evap stuff to see if it has been removed. Egr being gone wont smell like anything.
Old 02-28-2010, 10:51 PM
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Originally Posted by LT1
If you can check all the fuel lines and vacuum lines make sure nothing is disconnected or broken. Check that hose going to the FPR.

Is there any indication that fuel has leaked onto the ground where you have parked?
I'm with him. Check those fuel lines!!! they run right under the drive side up in to the front fender. My wifes 94, she had a gas smell and it ended up being a the line. a stone or somrthing got kick up just right and cracked that line just under the driver floor board. Had to have her cycle the key while it was pressurized to find it.
Old 02-28-2010, 10:56 PM
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Default Same problem

I have the same problem is this a recall have anybody checked on that
Old 02-28-2010, 11:14 PM
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usually if it is a real bad smell it is the plastic lines that they used are leaking. if it is just a light smell it could be several things as stated above like canister, evap hoses, fuel rail, ect. The evap hoses are like the first things to go on these cars. they are on the left side of the intake I think and usually they go bad and most of the time don't throw a code.
Old 02-28-2010, 11:56 PM
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ok tomorrow i will check all vaccum lines and fuel lines.. its just weird cause i can smell it when i'm driving.
Old 03-01-2010, 12:07 AM
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Originally Posted by importben
ok tomorrow i will check all vaccum lines and fuel lines.. its just weird cause i can smell it when i'm driving.
evap stuff is right next to the cowl so could be comming in from there or could be a leak at any of the spots stated above. anyway let us know.
Old 03-01-2010, 12:09 AM
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EVAP delete and cap it off at the Tank.
Old 03-01-2010, 01:46 AM
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My car had a strong smell of gas from under the hood only when the car was running, ended-up being the #7 spark plug had worked it's way loose and was blowing-by.


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