1998 Chevy Suburban stalls

Tiny
2INTENZ
  • MEMBER
  • 1998 CHEVROLET SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 145,980 MILES
I just installed new heads and re-built the motor, since then, when it gets hot outside, the truck acts like it ran out of gas. It did it today and there is a full tank. After it cools off for a while, it will start again. When its cool out it runs great. I put a new fuel filter in it and had the fuel pump replaced last year. It's getting spark too. HELP !
Friday, May 8th, 2009 AT 8:39 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
After it cools off for a while, it will start again.

Don't wait do below immediately and report back with some results

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, distributor pick-up coil, ignition control module, cam and crank sensors- Note: If it doesn't apply disregard it
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Friday, May 8th, 2009 AT 9:11 PM

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