1993 Cadillac Deville Repair Question
Cadillac heat problems
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.
68 questions asked
so if i have no heat its the heater core than?
2 questions asked
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
2,857 answers provided