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12-03-2013, 05:30 PM | #1 | |
AF Newbie
Join Date: Dec 2013
Location: THREE FORKS, Montana
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91 gmc 5.7tbi 35o dies when givin fuel
I bought it for cheap because the previouse owner couldnt get it to run right. Now ive put new plugs, cap rotor, wires, fuel pump, fuel filter, map sensor, and tps sensor in it and i cant get it to run right either. It idels amazing when you open the throttle it advances a little and starts back firing. Open it further and it dies. I know if its running on ignition advancd it will only advance so far. any help would be greatly apprciated.
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12-04-2013, 08:24 AM | #2 | |
A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
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Re: 91 gmc 5.7tbi 35o dies when givin fuel
Sounds like could be low fuel pressure, maybe the regulator in the TBI is bad, try and check fp, need adapters to hook up at the fuel filter. Also see if you are losing spark to the plugs as it dies, ( 2 man job)
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12-10-2013, 09:12 AM | #3 | ||
AF Enthusiast
Join Date: Sep 2006
Location: Athens, Georgia
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Re: 91 gmc 5.7tbi 35o dies when givin fuel
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