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    yeswedeliver's Avatar
    yeswedeliver Posts: 6, Reputation: 1
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    #1

    Apr 23, 2011, 07:08 PM
    91 Pontiac Transport - Front Air Vent Heater/AC Housing - Controllers Actuators
    What is the monstrosity that sits under my dash that manages, diverts and controls the flow of air, heat, ac into the cabin? What is this called? It is a seeming self contained unit. How do I remove it? Is there something in this housing that might interfere in any way with the free spinning ability of the blower, heater fan? My fan stopped and a bump would get it started [not an electrical short]. Soon it would start but a tap on the housing with a small hammer would free up something and it would spin up to speed. But now nothing will get it going. I am preparing to just replace the motor but access on in the engine compartment. What is inside this monstrosity that might be causing this symptom>? Thanks for your time and help.
    cdad's Avatar
    cdad Posts: 12,700, Reputation: 1438
    Internet Research Expert
    		  
    #2

    Apr 23, 2011, 07:24 PM

    You have a 20 year old car. The motor may just be worn out. Also dirty commutator or bad brushs on the motor.
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