1998 2500 GMC TRCK

  • Tiny
  • Lence1997
  • 1998 GMC C2500
  • V8
  • 2WD
  • 200,000 MILES

My truck wont start, It almost starts having trioube somewhere

Do you
have the same problem?
Wednesday, November 24th, 2010 AT 6:05 PM

1 Reply

  • Tiny
  • Rasmataz

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, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, 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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Thursday, November 25th, 2010 AT 11:10 PM

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