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Owns A Torsen
Joined: Mon Sep 18th, 2017
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Your problems might be un related but from the same "place" if that makes sense.
Alternators will not cause the car to not start. I don't think your alternator is bad I believe there is a wiring issue which would account for the lights dimming also. If the alternator is bad and acts as you stated, it might pass a test at the auto parts store so it would be hard to tell but even if it is going bad that is not your immediate problem.
With the car off check battery voltage. It should be over 12, like 12.6. If it is under 12 how far under? If over 12 go to next step.
In the PDU fuse box under the hood there are 2 big identical relays, 47 and 48. Switch them. One is starter and one is radiator fan almost impossible for them both to be bad. See if it cranks over. IF it cranks over replace the relay that WAS in slot 48 (starter) because if it does start after switching your truck will overheat while in line at McDonalds.
Start here and if that doesn't net anything we will go deeper.
It is possible for a fuse to appear good and be blown or have a mechanical failure at the contact legs. Any fuse you "check" pull it out and check it with an ohm meter (function included in volt meters :) )
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01 XLT 2WD RC Steppie 3.0 auto Silver
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