HOW DO I FIND THE CAUSE OF A "NO SPARK" PROBLEM?

  • Tiny
  • CJF
  • 2000 GMC Sierra
  • 74,000 miles

Truck cranks but no spark. Igniter/ingition module has been replaced. So has crank angle sensor, Dist. Cap and rotor and coil checked out good. Computer is not giving any codes or responding what so ever to an Obd II code checker. Could it be the distributor or possibly the ECM? Feelin kinda stumped right now. Thanks a lot, CJF

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Saturday, October 29th, 2011 AT 10:11 AM

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  • Tiny
  • rasmataz
  • Member

No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing

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Tuesday, November 1st, 2011 AT 9:52 AM

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