1983 Pontiac 6000 Throttle Body

Tiny
CRAZYMAN312
  • MEMBER
  • 1983 PONTIAC 6000
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 199,000 MILES
I have a 1983 Pontiac 6000 2.5L TBI and when i go to start it gas comes gushing out of the carb part of the tbi. i have replaced all the gaskets and installed a aftermarket fuel pressure regulator. It keeps catching on fire and i cannot find out how to fix it. My Fuel injector is working and i also replaced the stock pressure regulator as well. Here is a pic


http://www.2carpros.com/forum/automotive_pictures/165243_TBI_1.jpg

Tuesday, March 4th, 2008 AT 5:05 PM

8 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
You have done everything I would have suggested. There must be a crack in the tbi. My next advise would be installing new unit from a junk yard.
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Tuesday, March 4th, 2008 AT 5:17 PM
Tiny
CRAZYMAN312
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If the fuel injector was clogged and the gasket in the picture that is circled was bad would that be enough to make this happen?
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Tuesday, March 4th, 2008 AT 5:23 PM
Tiny
MASTERTECHTIM
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A clogged injector will have nothing to do with it. That gasket could be bad but I thought you said you replaced it.
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Tuesday, March 4th, 2008 AT 5:27 PM
Tiny
CRAZYMAN312
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  • 5 POSTS
I did but I got it from another car cause I cant buy just that gasket I need to buy the whole kit which is 79 bucks.
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Tuesday, March 4th, 2008 AT 5:31 PM
Tiny
MASTERTECHTIM
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I have been in your situation before and they are very finicky, you must replace those gaskets with new ones or they will leak. Ive been there and tried that.
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Tuesday, March 4th, 2008 AT 5:33 PM
Tiny
CRAZYMAN312
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  • 5 POSTS
I guess I will buy the kit but I guess it is worth it thanks.
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Tuesday, March 4th, 2008 AT 5:36 PM
Tiny
CRAZYMAN312
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Also I cleaned the whole setup with carb cleaner. Would that effect my Idle Air Control Valve any?
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Tuesday, March 4th, 2008 AT 5:37 PM
Tiny
MASTERTECHTIM
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No. I always clean them with carb cleaner
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Tuesday, March 4th, 2008 AT 5:39 PM

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