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Truck won't start with good fuel pressure

Tiny
CASEYSWICKED1
  • MEMBER
  • 1997 GMC C1500
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
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.
Thursday, January 21st, 2016 AT 1:01 PM

8 Replies

Tiny
PACO8224
  • MECHANIC
  • 117 POSTS
Have you checked if you are getting fire? How long has truck been down?
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Thursday, January 21st, 2016 AT 1:13 PM
Tiny
CASEYSWICKED1
  • MEMBER
  • 6 POSTS
I'm checking that right now. Its been down for 2 days.
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Thursday, January 21st, 2016 AT 1:16 PM
Tiny
CASEYSWICKED1
  • MEMBER
  • 6 POSTS
Its getting spark. Any suggestion's?
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Thursday, January 21st, 2016 AT 1:25 PM
Tiny
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.
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Thursday, January 21st, 2016 AT 1:34 PM
Tiny
CASEYSWICKED1
  • MEMBER
  • 6 POSTS
Could a bad fuel pressure regulator cause that problem?
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Thursday, January 21st, 2016 AT 2:03 PM
Tiny
PACO8224
  • MECHANIC
  • 117 POSTS
Put the fuel pressure gage again and check if the fuel pressure stays or does it drop
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Thursday, January 21st, 2016 AT 2:16 PM
Tiny
CASEYSWICKED1
  • MEMBER
  • 6 POSTS
It shoots up then it drops.
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Thursday, January 21st, 2016 AT 2:31 PM
Tiny
PACO8224
  • MECHANIC
  • 117 POSTS
The pressure regulator not regulating the fuel. I would start with that you have to keep fuel pressure up.
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Thursday, January 21st, 2016 AT 2:34 PM

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