View Full Version : A heat problem with my 91 DeVille


MrSmith
12-27-04, 02:49 PM
Its a 91 Sedan DeVille {FWD} 4.9L
hello yauowll, :)

I took the Family to see there grandmother on The Lords birthday and while on the way the lac showed the outside temp to be about 31 deg. Well I had the heat on 85 and it wasnt blowing out heat, but cool air. although it wasnt cold inside the car. It wasnt as warm as it should be. I tapped the button once and it went to 90 deg and it began to get too hot. so I tapped the cool button once and it was back to were we started this thread. is there a solution to the problem Im having with my heat.

In case you didnt get the question. Its:

How do I get warm air coming in the car without getting to hot. 90 is to hot but 85 isnt blowing any heat :confused: this is either off using the fresh air while driving, having the heat on economy low level or any auto setting. Im not getting warm unless I set it on 90 and then its too hot.

slk230mb
12-27-04, 04:02 PM
Maybe a clogged heater core?

BeelzeBob
12-27-04, 08:20 PM
There are a multitude of "no heat" style posts that may give you a clue....such as the one below.....http://www.cadillacforums.com/forums/showthread.php?t=27817