Compression Ignition Addict
Join Date: Jun 2008
Location: McGregor, TX
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Altenator not charging/ ignition switch not working
I have an 82 J10 that I had a dead battery on and I thought the altenator was bad. I replaced the battery today and had the altenator tested and it's fine. I also replaced the starter selonoid (Old ford style on the fender well). Here's whats going on.
Turn the key on, nothing comes on that should with the key. Truck acts like the battery is not connected. Leave the key on, jump the selonoid with a screw driver, truck cranks right up and all accessories work. Voltage to the battery & battery side of the selonoid is 12.36 (same as not running) but the voltage coming out of the back of the altenator is 14.8 & is the same as the ignition side of the starter selonoid. While the truck is running, I turn the key off and it dies just like it should.
Is this a bad ignition (GM style) switch or is there an ignition relay that may be bad? I'll have to pull the steering wheel to replace the ignition switch if it's bad & I really don't want to.
2002 4X4 XLT EX - Air Dog