partial spark

1975 FORD F-350
200,000 MILES • 7.3L • V8 • 2WD • AUTOMATIC
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HARRY CLARK
  • MEMBER
  • 1 POST
I'm not getting consistent spark out of my coil when I first turn the key on it sparks and when I turn thekey off it sparks but no spark when revving . abut some times the engine will fire right off no problem be running fine then all of a sudden quit running. I've replaced all switches and coil electron control box ..no go
Mar 21, 2023 at 11:12 AM
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