Engines still runs after turning it off?

1978 MG MGB
50,000 MILES • 4 CYL • 2WD • MANUAL
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JIM. PHILPOT
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When I shut the car off the engine runs on.
Jun 23, 2021 at 12:19 PM
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STRAILER
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I would remove the wires from the alternator to see if it still runs, you can have a leaking diode backfeeding the system. Let us know what happens and please upload pictures or videos of the problem.
Jun 24, 2021 at 3:09 PM