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1991 Lincoln Town Car Question: How do I check/ test heater control valve on 1991 Lincoln town car Cartier ?

 

Question

Keepitcheap, Glen Saint Mary, FL, September 17, 2012, 14:08
 Rookie

Ac starts cold then warm then cold, blend door free and seems to work.

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  • Answer #1

    Chevy Power September 18, 2012, 12:18
     Journeyman

    It is a vacuum operated valve that you can manually open with a vacuum pump to test operation.

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