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Motor will hit, but will not start

Tiny
KENNETH STUBBS
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • 5.7L
  • V8
  • AUTOMATIC
  • 101,000 MILES
Replaced fuel pump. Ran for 3 weeks. My sister could not start it, but it would start for me. Went to go to town and would not start for me. Replaced plugs wires and rotor. Cranked fine. Started it next morning, went to church and had to tow it home. No check engine light. Replaced crank sensor, distributor, mapp sensor mass sensor. Fuel pressure is 60psi? Can the anti knock sensor cause this problem? Can the ignition switch cause this problem?
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Saturday, March 8th, 2014 AT 4:18 PM

1 Reply

Tiny
KNOWLEDGE IS POWER
  • MECHANIC
  • 1,136 POSTS
Any of these can cause this. You really should get hooked to a diagnostic computer to read the engine datastream to find whats missing before you throw more money at this. Let me know what you find.
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Friday, October 4th, 2019 AT 3:44 PM

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