Gasoline Smell ??
Thread Starter
Racer
Joined: Feb 2001
Posts: 433
Likes: 0
From: melbourne beach fl
Gasoline Smell ??
When my tank is full, I smell gas fumes. Really noticeable when car is in garage. After driving for 30 miles or so, no more smell. Just started happening last few months (first 6 years - no problem).
Any ideas? TIA
Any ideas? TIA
Racer
Joined: Feb 2007
Posts: 329
Likes: 0
Could be one of three things:
1. Defective evaporative control canister.
2. Leaking or clogged fuel vent hose.
3. Are you topping off when you fill up? Don't top off, you need the extra room leftover when the pumps automatically clicks off to allow for the expansion of the gasoline. If you overfill the fumes will enter the evaporative control system and could foul it.
I'd say, don't top off and you will notice the smell goes away.
1. Defective evaporative control canister.
2. Leaking or clogged fuel vent hose.
3. Are you topping off when you fill up? Don't top off, you need the extra room leftover when the pumps automatically clicks off to allow for the expansion of the gasoline. If you overfill the fumes will enter the evaporative control system and could foul it.
I'd say, don't top off and you will notice the smell goes away.
Thread Starter
Racer
Joined: Feb 2001
Posts: 433
Likes: 0
From: melbourne beach fl
Could be one of three things:
1. Defective evaporative control canister.
2. Leaking or clogged fuel vent hose.
3. Are you topping off when you fill up? Don't top off, you need the extra room leftover when the pumps automatically clicks off to allow for the expansion of the gasoline. If you overfill the fumes will enter the evaporative control system and could foul it.
I'd say, don't top off and you will notice the smell goes away.
1. Defective evaporative control canister.
2. Leaking or clogged fuel vent hose.
3. Are you topping off when you fill up? Don't top off, you need the extra room leftover when the pumps automatically clicks off to allow for the expansion of the gasoline. If you overfill the fumes will enter the evaporative control system and could foul it.
I'd say, don't top off and you will notice the smell goes away.
Thanks for suggestions - 1 & 2 sound like possibilites.
Instructor
Joined: Feb 2004
Posts: 108
Likes: 0
From: Orlando FL
i had to have the left fuel tank replaced due to cracks at the top. seems to be a manufacturing issue on many c5's. same symptoms as yours. was definantly worse with a full tank.
Last edited by Thingobump; Mar 9, 2007 at 09:15 PM.
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Joined: Mar 2006
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From: SYDNEY AUSTRALIA
My left hand tank is finally being replaced because of a crack around crossover pipe connection to tank. Would leak once over half tank. I hope yours is'nt the same problem as the whole transaxle has to come out. It,s expensive and time consuming especially Down Under. Hope I get it back next week. I really need a drive after 7 weeks at the shop.
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Joined: Feb 2001
Posts: 433
Likes: 0
From: melbourne beach fl
Mine is leaking from right tank, at the top where it is connected to a hose or pipe. Am still waiting on GMPP adjustor to get out to shop to ok repair. I know it won't be cheap, price of tank alone is about $650.
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Thread Starter
Racer
Joined: Feb 2001
Posts: 433
Likes: 0
From: melbourne beach fl
My car is in an independent vette shop. GMPP won't do anything until an adjustor comes out and actually sees the problem. Yes - total BS but not much I can do. Meanwhile - GMPP is paying for my Grand Prix rental - actually not a bad car for a sedan.
Cruising
Joined: Jan 2007
Posts: 12
Likes: 0
From: Clemmons North Carolina
Gasoline Smell
I have the exact same problem with my 2002 and was fixing to list this on the forum. I will look at the problems noted and relay what I have found as soon as I can get it on a lift. Also waiting for a set of OEM wheels from House of Wheels. My right polished rear cracked and was leaking air.
Thread Starter
Racer
Joined: Feb 2001
Posts: 433
Likes: 0
From: melbourne beach fl
Finally got my car back
Got to love that GMPP!
- gas leak fixed (right side tank replaced)
- left fuel sensor & right fuel module replaced (fuel gauge had been acting up again, after having sensors replaced about 3 years ago)
- steering wheel position sensor replaced (was throwing faulty codes)
Got to love that GMPP!
Race Director
Joined: Nov 2001
Posts: 18,682
Likes: 4
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
Finally got my car back
Got to love that GMPP!
- gas leak fixed (right side tank replaced)
- left fuel sensor & right fuel module replaced (fuel gauge had been acting up again, after having sensors replaced about 3 years ago)
- steering wheel position sensor replaced (was throwing faulty codes)
Got to love that GMPP! 
