Having problems with your 1983 Ford F 350 ?
No spark While driving just shut down. Either backfired or sparked under vehicle twice. Replaced Microprocessor, egnition module and crank shaft probe F250 ford truck 350 engine, California specia 1983 model
Tough to tell without being there but it may be your timing chain slipping or broken. At that age of vehicle (how many miles) if the timing chain has not been replaced - that would be my suspect.
Repair Help & Product Troubleshooting for 1983 Ford F 350
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