1990 Chevy Cheyenne how you doing

Tiny
ANTHONY RICHARDS
  • MEMBER
  • 1990 CHEVROLET CHEYENNE
  • V8
  • 4WD
  • AUTOMATIC
  • 146,000 MILES
I have a problem with my truck its a 1990 chevy pickup 4x4,350ci, it runs fine but when I shut it off and restrat it it wont start right after I shut it off but let it sit for a minute it will start right up, then shut it off and wont start, till I wait for about 5mins. Please help me try to friger this out thank you.
Saturday, March 6th, 2010 AT 7:06 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Next time this happens, do below immediately to determine whether it's fuel or spark issue.

Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -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, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.
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Saturday, March 6th, 2010 AT 7:48 PM

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