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unclebilly unclebilly is online now
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Join Date: Nov 2003
Location: I'm 'out there...'
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Oh yah, GM also uses an ignition module on their newish stuff. The one in my 89 1/2 ton quit one night on the way home from hockey. It is a cheap part and I now carry a spare.

This same thing happened to a guy on one of the hockey teams I play against a week later - he was amazed when I pulled out the spare and installed it in his truck and it fired right up.

My guess is that this is your problem.

Oops - I see you changed the module and it still runs, just misses.

I second Ben's comments about a burnt or stuck valve. Have you got spark at all 8 leads? Have you done a compression test? Is there an injector not firing?
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Last edited by unclebilly; 04-16-2007 at 08:52 PM..
Old 04-16-2007, 08:46 PM
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