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smell gas when accellerting
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t206w6
New User
Oct 18, 2011, 9:45 AM
Post #1 of 6
(1717 views)
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smell gas when accellerting
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 1988 GMC 350 has a strong smell of gas when accelerating. Using a lot of gas lately. I don't see any gas leaking at Throttle body. Would rebuilding TB versus replacing TB be beneficial? thanks
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 18, 2011, 11:32 AM
Post #2 of 6
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Re: smell gas when accellerting
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First you need to determine what is leaking before you decide how or what to fix.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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t206w6
New User
Oct 18, 2011, 6:39 PM
Post #3 of 6
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Re: smell gas when accellerting
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Replaced fuel pump/sending unit @ 3 months ago [no leaks] I see no leaks around the intake/throttle body. Past 2 weeks it has been using a lot of gas. 30 gallon tank of fuel lasts @a week now.. Check engine light comes on upon hard acceleration then goes off... As far as I know, it has the original TB and O2 sensors. Snog pump squeals on acceleration also.
1988 GMC Sierra
350 c.i.
over 200k miles, {speedo not racking up miles}
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 18, 2011, 6:43 PM
Post #4 of 6
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Re: smell gas when accellerting
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If you're smelling fuel, you have a leak and you have to find it. You will likely have to look on a lift with the engine running as the fuel will evaporate real quickly. Look for stains also. It can be anywhere between the fuel tank and the fuel injectors.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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t206w6
New User
Oct 18, 2011, 6:56 PM
Post #5 of 6
(1674 views)
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Re: smell gas when accellerting
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thanks Hammer; will do..... I'll keep you posted. hopefully I won't have to spend over 4 bills for a new tb.
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t206w6
New User
Nov 6, 2011, 9:10 AM
Post #6 of 6
(1617 views)
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Re: smell gas when accellerting
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sorry for the delay in follow-up ~ everything checked out; NO leaks anywhere.. Changed out Smog Pump, fuel filter, and O2 sensor. Smell of gas has since dissipated. Time to lift radiator cap off this 88 and place it on a New vehicle.... thanks for the help
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