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Everything works fine with the key in acc. position, but when I start it every thing stops working. No lights, no radio, no heater, no nothing. Any thoughts?

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  • Many vehicles have a load-shed relay, which disconnects all extraneous electrical loads while the starter is engaged. Your car's symptoms would appear if the load-shed relay actuated correctly to remove these loads when you actuated the starter motor, but then did not release correctly to re-make the connections after the engine began running. I've not heard of a load-shed relay acting in this fashion, but it's possible mechanically and would account for what you describe. Commented Feb 2, 2020 at 17:30

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it could be your problem with alternator (charger) circuit to battery or your switch problem.. try to change your switch to generic one (buy one from local shop) cheapest one but please do not throw away your original switch first.

disconnect your battery, change switch with original cable intact with same position on switch, connect the battery, try that.

if the problem still occurs, try to remove every cable on acc try just one cable like lamp first, start again. if the lamp can be turn on, than then the problem comes from the rest cable on acc.

usually old car have problem with electric being jumped by another cable or short circuited.

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  • "try to change your switch to generic one" what switch would that be?
    – FreeMan
    Commented Jun 23, 2022 at 17:00

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