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Old 07-21-2022, 02:55 PM   #5
Wrenchbender Ret
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Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,192
Re: Turn key then lose all power

Turn on the lights & see if they work. If so you have a bad ign. switch or the connector.
This is common on these trucks. The connector on the back of the switch & the switch terms. get overheated & burnt. The connector is available as a pigtail for repair of the harness. If everything is dead you need to do like Steevee says. Get a test light & start tracing the circuit.
George
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