Cadillac heat problems

1993 CADILLAC DEVILLE
280,000 MILES • V8 • FWD • AUTOMATIC
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GARETT007
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  • 7 POSTS
where is the heater flow control valve in a 1993 cadillac deville?
Mar 15, 2011 at 1:41 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
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.


Mar 15, 2011 at 1:44 AM
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GARETT007
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  • 7 POSTS
so if i have no heat its the heater core than?
Mar 15, 2011 at 1:48 AM
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CADIEMAN
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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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 15, 2011 at 2:35 AM