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Replaced ignition modultruck ran great for 2 more week then just died again.checked and have no spark.had ignition module bench tested and its fine.Any help would be appreciated.
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Why did you change the coils ??????? Do you know how to test electrical circuits with a DVOM - digital volt ohm meter ? Check for B+ voltage at the ignition module ,connector 2 pin C this is a pink wire . Check for a good ground at connector 2 pin A ,black with white stripe . Plus watch as many videos from this guy as you can on GM igntion systems .Your vehicle has two crankshaft position sensors . GM Bypass Ignition System Operation part 1
Hello genobeano: My name is Roger and I will give some information that should help. When you replace the pick up coil also replace the ignition module. The ignition module will short out the pick up coil. If the module is attached to the side of the distributor be sure to use die electric grease when installing the module on the distributor. Should you not use the grease you will burn up the ignition system. By the same token should the pick up coil short out the module will burn out. The fact it runs for a short time says that you have a heat problem. Normally is in the ignition system. There was a tech bulletin to replace the pick up and module as a unit to correct the problem.
Please rate the answer as this lets us know you received correct information. Should you need further help please just ask. Thank You for using Fix Ya. Roger
It would be great if you could find the Ignition Control Module!!! From my experience on my Jeep...90 YJ 4.2 liter carb. it does not have one...Computer controlled only...
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