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09-24-2015, 08:02 AM
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#1 | |
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AF Newbie
Join Date: Sep 2015
Location: indialantic, Florida
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fuel problems
have a 1994 gmc 1500, 4.3 engine. fuel supply problems. replaced pump with Delphi pump getting 2 second power to pump truck still will not start. could it be a relay problem or bad connection? please help. thanks james
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09-24-2015, 07:38 PM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 17,052
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Re: fuel problems
Basics, got spark, do the injectors spray when first cranking, will it start spraying carb cleaner into the intake?
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09-25-2015, 09:13 AM
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#3 | |
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AF Newbie
Thread starter
Join Date: Sep 2015
Location: indialantic, Florida
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Re: fuel problems
thanks for helping. have fuel at inlet line on back of tb. injectors not spraying. however I do not have spark. will injectors spray if I have no spark? thinking problem with spark to be coil or pcm. again thanks for help..james
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09-25-2015, 03:42 PM
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#4 | |
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A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
Posts: 17,052
Thanks: 26
Thanked 383 Times in 374 Posts
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Re: fuel problems
OK,power to the pump for prime, but does it run, if not check the ground side circuit to the pump.
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