1990 Cadillac Coupe Deville, No Heat R-12 A/C
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1990 Cadillac Coupe Deville, No Heat R-12 A/C - 1/16/2008 10:34:37 PM
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adixon3
Posts: 23
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Joined: 5/25/2007
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I have a 90 Coupe Deville I tried everything I can think of to get heat to come from the vents. I've changed the temp guage from 60 degrees to 90 degrees and I can hear the air mix valve change direction of the air but all i get is cool air coming from the vents. I've checked the radiator level it was full, heater core hoses for leaks found none, replaced the thermostat, still no heat but I do need to recharge the R-12 for the A/C to work. Does the ac affect the operation of the heater or Is there anything else I need to check?
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< Message edited by Stealth -- 1/25/2008 8:02:11 AM >
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RE: No Heat - 1/17/2008 6:00:17 PM
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adixon3
Posts: 23
Score: 0
Joined: 5/25/2007
Status: offline
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I took the Glovebox out and verified that the air mix valve operated correctly. it did the rod moved and the air changed from the upper vents to the floor vents when i change the temperture to a higher number. I opened the hood and felt the both hoses going into the heater core and they were hot, i felt the box covering the heater core it was not hot but just warm. What is the Heater water valve? Is that the same as the thermostat? if it's not then where is it located?
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