Author Topic: gas smell on '94 tbi  (Read 2428 times)

Offline the_legend_1981

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gas smell on '94 tbi
« on: March 19, 2013, 05:53:07 pm »
I got the truck up to around 80 yesterday on the highway and smelled a gas odor coming in through the vents. Did not notice it at 65. No visible leaks anywhere. Has anyone had similar issues?

Offline Engineer

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Re: gas smell on '94 tbi
« Reply #1 on: March 19, 2013, 07:27:42 pm »
I have a '94 K2500 that smells like that after I drive it. I never thought too much about it, I assumed it has to do with the evap canister getting old.
2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

Dad of an Eagle Scout, and a Life Scout

Offline bd

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Re: gas smell on '94 tbi
« Reply #2 on: March 19, 2013, 07:30:41 pm »
I suspect the same thing as Engineer.  Although there's no correlation to vehicle speed with the following, perform an inspection of the vapor canister along with all the fuel and vapor hoses all the way back to the tank(s), including the tank selector valve if present, and connections.  If the canister weighs more than about 3 lbs, it's beginning to saturate - more than ~5 lbs, replace it.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline the_legend_1981

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Re: gas smell on '94 tbi
« Reply #3 on: March 21, 2013, 09:09:41 pm »
Thanks for the info. I will check that out