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Old 03-13-2014, 07:05 PM   #6
thomasedwin
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Re: 2001 chevy tahoe heater clicking noise

Quote:
Originally Posted by j cAT View Post
you did fix the problem // then it failed again. Take apart the whole mess and see if its broken as the original or some other factor.

post your results could help some members with this.
I haven't taken it back apart yet but I believe It is not the actuator unit that is bad because I took apart the old unit and there was nothing wrong with it. I think there is a bad switch connection somewhere causing the vent door to continuously flip open and closed and the whole system is controlled by a computer.
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