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Join Date: Dec 2004
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Ignition switch shut off?

This is on a 1980 SC that starts and runs fine but will not shut off with the ignition switch. When I turn the switch to off, the gauges, accessories, etc; go off and the alt. light comes on, like in the run position but the engine does not miss a beat. also, it only does this after a drive and up to temperature. It starts up and shuts off fine with the switch when cold. Any ideas? Thanks.

Old 06-12-2006, 07:44 AM
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Now, it stays running hot or cold. What could keep the engine running when the switch is off when everything else shuts off with the switch like it should?
Old 06-14-2006, 03:03 PM
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It's a stock ignition correct?

MSD has a diode fix in their instructions.
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Old 06-14-2006, 03:34 PM
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Odd, but this happened to me last weekend. Can't explain why but I either pulled the electric window relay or the cruise control relay and the car starts and stops fine now. I am really perplexed whats going on here including why the electric windows still operate w/o the relay. I may have some wiring out of place from a previous owner. This might be a "one of" situation and of no help to you.
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Old 06-14-2006, 03:58 PM
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Stock ignition. I know the turbos have a diode at the generator light for the ignition delay relay probably to prevent this kind of problem. I am not sure though.

Old 06-14-2006, 07:28 PM
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