where is the heater flow control valve in a 1993 cadillac deville?
Mar 14, 2011 at 6:41 PM
Cadillac heat problems
GARETT007
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This vehicle does not use a Heater Control Valve (Coolant Valve) as coolant is always circulated through the heater core. Rate of coolant flow through the heater core is established by the Coolant Flow Restrictor.
Temperature is controlled with the Air Mix Door which allows or restricts the flow of air through the heater core case.
Temperature is controlled with the Air Mix Door which allows or restricts the flow of air through the heater core case.
Mar 14, 2011 at 6:44 PM
so if i have no heat its the heater core than?
Mar 14, 2011 at 6:48 PM
its on the hoses that go to a/c case. their is a vacume hose going to it.if u manually open the valve when hot heat will come out vents.be carefull use a rag to hold it. its a easy and cheap fix gl
Mar 14, 2011 at 7:35 PM