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1980 242 B21F - Random Cut Off Continues - Exorcism Needed ? 200

For more than a year now I have been trying to identify, isolate and remedy a curious condition. Car is a 1980 242 with B21F engine and K-Jet with automatic trans. The car will randomly shut off while driving. This is very intermittent. It can occur maybe twice in a week, and then not at all for 5-6 months. Independent of temperature, or how long the car has been sitting. When it cuts off, all dash warning lights come on. The oddest thing is that the car will restart immediately -- within seconds -- as if nothing was ever wrong, by simply putting the car in neutral and turning the key to start. Did not return the key to off before restarting.

While tracing possible causes have discovered some possible flaws and remedied those along the way. Not a bad thing to do on a 40+ year old car anyway.

What has been done:

New + and - battery cables, cleaned terminals and ground connections

Cleaned and tightened connections in small terminal block under hood on left fender

Replaced fuse block, cleaned and tightened all terminals. New brass fuses.

New ignition switch

New connectors an terminal for 12v connectors at coil as well a new coil

New old stock ignition control module under hood on right fender. NOS cable from module to coil

New cable from ignition control module to distributor.

Replaced distributor

New cap, rotor, plug and coil wires.

New main fuel pump, and feed pump, all terminals and connections clean and tight.

Vacuum hoses are new and tight.

What is infuriating is that once it stops, it doesn't stay stopped to allow any actual troubleshooting of the problem when it happens. Wiggling, tugging on and tapping things while car is idling in garage does not duplicate the condition. When running, it runs fantastic with strong smooth idle, and great throttle response.

Any idea what I am missing ? Thinking of calling a priest for an exorcism.







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New 1980 242 B21F - Random Cut Off Continues - Exorcism Needed ? [200]
posted by  yellowbrickroadster  on Sat Jul 23 10:01 CST 2022 >


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