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  1. cudakid

    96 4.3 to 5.7 swap with no spark

    Yup crank sensor is in. Currently don't, looking around to see if we can find one that isn't too expensive
  2. cudakid

    96 4.3 to 5.7 swap with no spark

    Yes, have voltage at the coil and ecm
  3. cudakid

    96 4.3 to 5.7 swap with no spark

    Have a 96 GMC 1500 single cab that was originally a 4.3. We blew that motor up so pulled a 5.7 out of a 97 Tahoe to swap in. Stole the wiring harness and all that out of it as well. Tahoe was running and driving before pulled everything out of it. Going to to try to start it but have no spark...
  4. cudakid

    Engine Bay Wiring Harness Swap

    Interesting, thank you very much. Guess figure out how to either make a tahoe brake light stuff work or steal the wires out of my old harness and wire the relay in.
  5. cudakid

    Engine Bay Wiring Harness Swap

    Good evening Have a 96 1500 single cab that I am swapping in a 5.7. Originally the truck was a V6. Stole the motor and the engine wiring harness out of a 97 Tahoe. Everything went in and put power to it all and realized the third brake light was on as soon as everything had power and now have no...
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