Mechanics

HEAT PROBLEMS

1993 Cadillac Deville • V8 FWD Automatic • 280,000 miles

Where is the heater flow control valve in a 1993 cadillac deville?
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Garett007
March 15, 2011.



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.

Rasmataz
Mar 15, 2011.
So if I have no heat its the heater core than?

Tiny
Garett007
Mar 15, 2011.
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

Cadieman
Mar 15, 2011.