1997 GMC Suburban

Tiny
8915868C
  • MEMBER
  • 1997 GMC SUBURBAN
Engine Mechanical problem
1997 GMC Suburban V8 Four Wheel Drive Automatic

engine crank, want start
Monday, August 30th, 2010 AT 8:32 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Cranks but no start condition:

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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Tuesday, August 31st, 2010 AT 12:29 AM

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