Fan works on high only in the cab and sleeper. any ideas? All fuses seem to be OK.
Thanks for looking.
Lyn
2000 379 A/C fan speed issue
Discussion in 'Peterbilt Forum' started by Geckolyn, Apr 22, 2013.
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You're blower resistor is bad you just need to replace it its actually really easy it should be located somewhere right near the blower motor.
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open and pull down glove compartment.5 min.job.unplug,remove 2 phillips screws,replace.good luck.
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to test ot fix as temp run a jumper wire around each post.
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My 86 Toyota Tercel did the same thing . Changing that resist fixed it.
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