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1992 deville has no heat - 1992 Cadillac DeVille

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What heat does it run on guage ,,,, if ok its heater rad or thermo ,,, unuassly wwterpump

Posted on Feb 15, 2012


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92 cadillac deville no heat or air blowing at all

Devilles use a controller instead of a basic blower resistor.
Someone would need to check the blower motor for power and ground, then check the controller mounted in the HVAC box on the firewall.
You may need a shop manual to get the wiring diagrams needed to troubleshoot the system.

Oct 03, 2012 | 1992 Cadillac DeVille

1 Answer

1992 Cadillac Deville blowing air but not heating?

There is a damper (basically a door) in the heater unit that is probably not being actuated. This damper allows the air from the blower to be sent over the hot heater core and thus warming the car interior. This damper might be either vacuum controlled or electrically controlled. My 1992 Blazer had vacuum lines that went to it. It could be that you have the vacuum lines loose under the dash. Look for loose hoses or connectors and see if you see an obvious place they might plug into.

Dec 16, 2011 | 1992 Cadillac DeVille

2 Answers

Do a red wire from alternator suppose to be connected to battery on a 1992 deville with heated w/s

Hi, if the wire is connected by a nut on the back of the alternator it can go either to the battery or to the starter solenoid.


Sep 27, 2011 | 1992 Cadillac DeVille

1 Answer

My 92 Deville stalls out when it gets hot


Aug 20, 2011 | 1992 Cadillac DeVille

1 Answer

1992 Deville, no heat. trouble code is telling me that the air mix door is malfunctioning. Where is it located and how do I get to it

Hello: The actuator for the air mix door has probably failed (high failure rae item) Remove the glove box and the passenger side hush panel(on bottom of passenger dash) Turn key on (engine off) You will see a silver rod coming from the actuator going to the arm on the door. Run the temp from 60 to90, the rod should move, if it doesn't the actuator is bad. The actuator is mounted on top of the programmer. This should help you.

Nov 06, 2010 | 1992 Cadillac DeVille

2 Answers

We have a 1992 Cadillac DeVille - the motor has been replaced, new radiator new water pump, new hoses, theromsat - has no heat to the heater core - car does not get hot when at idle - but does overheat...

check fan fuses and relays. is the idiot light coming on . stop engin temp. if its coming on unplug it . its located behind the rear valve cover in the middle. if that isnt it replace temp sensor. located below the air breather.

Feb 02, 2010 | 1992 Cadillac DeVille

1 Answer

Need diagram on how to put a belt on without the ac for a 1992 cadillac deville

1992 Cadillac Deville 4.9L SFI 8cyl

Serpentine Automotive V-Ribbed Belt (Standard)


Hope help you with this. Good luck (rated this help).

Sep 15, 2009 | 1992 Cadillac DeVille

1 Answer

I have a 1992 cadillac deville.i have a problem with the water going from radiator to the water reservior after it driven for awhile.what could the problem be?

This is normall oppertion, as the coolant heats up it expands just like water in a pot on the stove will boil over, hence the reson for the tank to catch it and return it to the radiator as it cools down. Now, if your coolant is not being returned to the radiator when it cools down you will most likely need a new rad cap.

Aug 27, 2009 | 1992 Cadillac DeVille

1 Answer

Cooling fan relay on a 1992 Cadillac Deville

Left Hand Side Of Engine Compartment On Relay Bracket

Jan 25, 2009 | 1992 Cadillac DeVille

1 Answer

Heat not blowing 92 cadillac deville

check you fan, or door controls under dash,

Dec 13, 2008 | 1992 Cadillac DeVille

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