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Old 11-25-2014, 04:41 PM   #12
c10noob
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Join Date: Oct 2014
Location: oakley, ca
Posts: 23
Re: How do I diagnose my heater?

Quote:
Originally Posted by John Pasinski View Post
Have you checked the resistor mounted in the heater box inside the engine compartment? That regulates the blower speed and or temp I believe.
I have not, Im trying to do everything I can before getting into the heater box
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