Motor want start

Asked by Buddywren123 Jun 12, 2016 at 10:32 AM about the 1993 GMC Sierra C/K 1500

Question type: Maintenance & Repair

I have a 93 GMC with a 5.7 trotel body an i
changed motors because mine locked up I
got a 5.7 vortec changed my heads over an
intake over an my distributor over now I
have a 7.5 vortec with the 7.5 trotel body
heads distributor an intake on an now i have
2 crank sensors one on my distributor an
one on my crank I can't get no fire to start
the engine which crank sensor do I use or
what do I do

1 Answer
60,355

Andrew answered 7 years ago

You used the everything from the heads up from the 93 motor right? Just use your old harness where it needs to be. However you just made your compression ratio really low buy doing this.

Mark helpful

Your Answer:

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