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04-07-2008, 04:36 PM
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#1 |
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Registered User
Join Date: Feb 2008
Location: Texas
Posts: 7
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Raw gas smell
I have a 78 GMC 1 Ton Dually with dual gas tanks. All tanks, lines, fuel pump and componentes are new, but have a strong raw gas smell in the cab while driving. (Not when idling or parked)
Engine is a small block 400 with a holley carb and holley headers. All rubber lines from the tanks to the carb are new. Thought that it might be the vents at the sending unit, so I plugged it, but it still smells. The only thing not new are the sending units. Thanks for any help |
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04-08-2008, 12:28 AM
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#2 |
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Registered User
Join Date: May 2007
Location: CO
Posts: 475
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Re: Raw gas smell
Do you have vapor canisters? On my 79, if I fill the R tank too full when it's warmer out, the vapors condense in that canister and I get the same smell you're talking about.
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04-08-2008, 04:52 AM
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#3 |
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Registered User
Join Date: Nov 2003
Location: st. louis area
Posts: 1,551
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Re: Raw gas smell
try driving it with the fill cap loose...or off & see if it still stinks.
__________________
75 GMC C-15 short/step factory 454, lowered |
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04-09-2008, 05:20 AM
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#4 |
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Dark Heart Motorsports
Join Date: Apr 2007
Location: 29404 DKFX
Posts: 683
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Re: Raw gas smell
check the lines running to your mechanical fuel pump on the block... it could be the feed line from the tank to the pump. common problem
__________________
How Deep Can YOU Bleed..? 1985 Chevy Blazer K5- 6.2 N/A, 400 turbo trans CUCV, 12v converted... a new chapter 2005 GMC Sierra Crew Cab 6.0 powwwaa!!! custom jumpseat install w/ captain seats, Hypertech tuner, MSD Blaster Coils, CB and twin antenna's, all electric interior, touch screen in dash. custom center console, with jump seat replacing original console. 1500 HD! |
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