i just lost my heat in my 1991 cad deville sadan

Asked by Nov 22, 2012 at 01:41 PM about the 1991 Cadillac DeVille Base Sedan

Question type: General

i was told there was a flap on firewall that controlls heat

2 Answers

A "flap on firewall"...uh, I think you misunderstood. A Frirewall is called that for a reason, an engine fire needs to be contained, at least for a while, to the engine compartment. A "flap" I don't understand. If the blower works, and you get no heat, there is a problem with getting hot water to the heater core, assuming when you put in on floor, defrost, dash , whatever and it comes out where you set it. A valve (there have been a lot of similar questions lately) controls the flow of hot water to the heater core, and if that valve or the linkage to it fails, no hot water will get to the core, = no heat. assuming again, your engine is at operating temperature. A "flap on the firewall" is a miscommunication or just plain wrong.

2 of 2 people found this helpful.
550

the flap is in the box under the dash alot ar vaccum controlled switches from heat to ac if its not the valve in the line under the hood it could be the linkage or vaccum line to the box under the dash some are switch with a actuator they will go bad u can flip it one way or the other switching from heat to air

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

Search Cadillac DeVille Questions

Cadillac DeVille Experts

#1 kikero
kikero
Reputation 2,160
#2 Js08016
Js08016
Reputation 1,860
#3 Cynthiasmith
Cynthiasmith
Reputation 1,600
View All

Related Models For Sale

Used Land Rover Defender
115 listings starting at $25,999
Used Cadillac Seville
358 listings starting at $2,500
Used Lincoln Town Car
37 Great Deals out of 1,813 listings starting at $1,495
Used Ford Mustang
711 Great Deals out of 44,427 listings starting at $1,500
Used Chevrolet Corvette
223 Great Deals out of 22,144 listings starting at $3,750

Used Cars For Sale

2005 Cadillac DeVille For Sale
247 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.