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1998 blazer 4.3 no spark. need help

Discussion in 'Chevy Blazer Forum (GMC Jimmy)' started by corvette, May 19, 2011.

  1. corvette

    corvette New Member

    truck has no spark ..new coil,distributor,cam sensor, still no spark.. no blown fuses. anybody have any input on what i could check.. haw many engine grounds are there in the engine compartment. i only see the the one braded gorund strap. im thinking its a ground wire i just dont no were to look.
    Last edited: May 19, 2011
  2. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Have you checked the ignition module??
  3. corvette

    corvette New Member

    no spark ..yes i replaced it with a new one

    yes i replaced it with a new one .. sombody told me ther are 3 engine grounds but i dont no were to look
  4. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    There is the main battery ground, and then you have the one to the rear of the engine, but what sounds odd is you might have a bad PCM if that rear ground is good.

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