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My 99 Tahoe is not firing.
done replace distributor coil ign module pcm what is can some one help
I have replace distributor coil ign module an pcm an it still has no spark help please
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Answers
If that's okay, have you checked the ECM fuse?
If the fuse is good, put a test light on it while you crank the engine. If the light goes OUT when cranking, you probably have a bad ignition switch.