84 chevy truck no spark?

4x4man

New member
first off, It has happened twice now. It will run fine, shut if off and it didn't start back up, had no spark. put a new cap and coil on it and it ran fine. Worked for a couple days then parked it and went to start it, and same thing no spark. I have tried different modules, coils, rotor, condenser, and running a hot from the battery straight to the dist. the second time when I put the cap on it had spark, but it was a yellowish color, then it failed and im where im at. I am lost, cant think of anything else to try.
 
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