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A/C and Heater

mccabedosh

Member
Local time
4:50 AM
Joined
Sep 28, 2009
Messages
6
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Location
lincoln
my vent and Def work but my a/c makes no sound when i switch it to a/c and my heater you can hear the vents open but it doesn't get warm....
 
Ordinarily there are TWO water valves in the system. One on the firewall (or passenger's inner fender) and the other inside the heater box just behind the center vents. When the first is opened water circulates through the outside of the double heater core...like a donut. Then when the center vent closes it opens the second valve, which allows water to pass through the center of the core. IF THIS VALVE ISN'T WORKING you really won't get any heat.
 
Check you resistor, bolted in your heater box inside down by glovebox, couple plug ins and a couple of screws and it out, look see if burnt into..
 
What year and kind of car are you talking about?
 
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