Truck won't start with good fuel pressure

1997 GMC C1500
160,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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CASEYSWICKED1
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  • 6 POSTS
My truck wasnt starting changed fuel pump due pressure test showing no pressure. New pump still not starting. Showing good pressure after putting a new pump on.
Jan 21, 2016 at 5:01 AM
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PACO8224
  • ✓Experienced Mechanic
  • 117 POSTS
Have you checked if you are getting fire? How long has truck been down?
Jan 21, 2016 at 5:13 AM
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CASEYSWICKED1
  • MEMBER
  • 6 POSTS
I'm checking that right now. Its been down for 2 days.
Jan 21, 2016 at 5:16 AM
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CASEYSWICKED1
  • MEMBER
  • 6 POSTS
Its getting spark. Any suggestion's?
Jan 21, 2016 at 5:25 AM
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CASEYSWICKED1
  • MEMBER
  • 6 POSTS
Its turning over and starting now but will only run for a few seconds then it dies. Still has good fuel pressure.
Jan 21, 2016 at 5:34 AM
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CASEYSWICKED1
  • MEMBER
  • 6 POSTS
Could a bad fuel pressure regulator cause that problem?
Jan 21, 2016 at 6:03 AM
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PACO8224
  • ✓Experienced Mechanic
  • 117 POSTS
Put the fuel pressure gage again and check if the fuel pressure stays or does it drop
Jan 21, 2016 at 6:16 AM
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CASEYSWICKED1
  • MEMBER
  • 6 POSTS
It shoots up then it drops.
Jan 21, 2016 at 6:31 AM
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PACO8224
  • ✓Experienced Mechanic
  • 117 POSTS
The pressure regulator not regulating the fuel. I would start with that you have to keep fuel pressure up.
Jan 21, 2016 at 6:34 AM
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