stinky gas odor! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

speesh · 07-12-2004, 08:32 PM

No, I didn't eat too many beans............
when I am driving my daily driven 71 suburban I smell gas inside the "cab" (do burbans have cabs???....)
what is the best way to find the source and fix it? any advice would be appreciated.

Gordo · 07-12-2004, 09:27 PM

Gasoline odor or exhaust odor? If gasoline, I would start at the carb and inspect every inch of the fuel supply lines, steel and rubber from carb to pump, along frame rails to tank, then the tank and gas cap. I have seen carbs flood, sending raw fuel out through the bowl/vaper recovery lines down into the charcoal cannister. Let your eyes and nose be the guide to locate the "wet spot".

Fred T · 07-12-2004, 11:39 PM

First, find and fix the leak. Then, inspect the hood to cowl gasket, which is supposed to keep those fumes from getting sucked into the cowl vent. I would guess it needs replaced.

07-12-2004, 08:32 PM	#1
speesh Senior Member Join Date: Jul 2001 Location: Ridgecrest, CA Posts: 318	stinky gas odor! No, I didn't eat too many beans............ when I am driving my daily driven 71 suburban I smell gas inside the "cab" (do burbans have cabs???....) what is the best way to find the source and fix it? any advice would be appreciated. __________________ 57 suburban(sitting in the driveway), 2 69 C20 longbeds (sitting in the field ) and a 2003 8.1 Suburban Endeavor to persevere. "All of a sudden, I'm the old timer!" Some old timer on American Pickers.

07-12-2004, 09:27 PM	#2
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Gasoline odor or exhaust odor? If gasoline, I would start at the carb and inspect every inch of the fuel supply lines, steel and rubber from carb to pump, along frame rails to tank, then the tank and gas cap. I have seen carbs flood, sending raw fuel out through the bowl/vaper recovery lines down into the charcoal cannister. Let your eyes and nose be the guide to locate the "wet spot". __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

07-12-2004, 11:39 PM	#3
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	First, find and fix the leak. Then, inspect the hood to cowl gasket, which is supposed to keep those fumes from getting sucked into the cowl vent. I would guess it needs replaced. __________________ Fred There is no such thing as too much cam...just not enough engine.



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