Last post on May 16, 2013 at 6:14 AM
You are in the Cadillac DeVille
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Cadillac DeVille, Heating / Cooling, Sedan
#55 of 88 93 caddy deville climate control and fuel data gauge show a "c" only on
Sep 02, 2009 (11:04 pm)
1993 cadillac devile 4.9 liter climate control and fuel data only shows a "c" on the displays. I've check the BCM, clusters, relays, fuses, temp. sensor, replaced alternator and still the same results. The blower moter runs until you turn the key to the off position. The continuous power to the interior when key is turned off no longer works meaning when I turn the key to the off position I loose all power in the car where it normally stays on for 10 minutes. Is there anyone out there who may have had this problem with their Cadillac and if so how did you solve this problem?
#56 of 88 help with fan problem in 98 cadillac deville
Sep 26, 2009 (8:51 am)
My 98 deville seems to have a mind of its own, it sometimes not always will start what appears to be the fan after the car has been shut off for 20-30 mins. It is random I never know when its going to happen. I always shut the air off fully before the care is turned off. funny thing is it sounds like the fan but when you get inside there is not air coming out of the vents. You have to put key in ignition turn it where all dash lights come on etc... then turn off and the fan goes off.
what is this??? its scary so far has only happened at home in my garage door is open every time but I wonder if it will happen in the parking lot at work or store whatever car only has 58K miles on it.
#57 of 88 Re: help with fan problem in 98 cadillac deville [miamifan]
Sep 27, 2009 (12:42 am)
There are a couple of possibilities, and I don't remember if either or neither are common to your 98.
-The connector that feeds power to the fan fails. It doesn't make good contact or something, overheats, and basically somewhat melts. This contact is under the hood, near the firewall, on the passenger side.
-On some years, the controller module that controls the fan speed fails in a certain way. When it fails, it will turn the fan on, even if the ignition is totally turned off. This module is inside, behind the glove compartment, on top of the air box.
#58 of 88 Re: 93 caddy deville climate control and fuel data gauge show a "c" only on [fveaces1]
Feb 18, 2010 (7:31 pm)
hi i have a 1990 caddy with the same problem fuel gauge shows a[c]and climate control shows a [c] hope you can help thanks peggy and keith
#59 of 88 Re: 93 caddy deville climate control and fuel data gauge show a "c" only on
Feb 22, 2010 (8:20 pm)
My relative has the exact same problem on a 1993 deville with 100000 miles. Anyone with sugestions where to start looking?
#60 of 88 Re: 2000 Deville - A/C and Heat work but Middle Blowers won't blow??? [vanhoogy]
May 30, 2010 (4:24 pm)
I have a 2001 Deville with this same problem; when I start the car with the A/C on there is this tick, tick, tick sound for about 30 seconds comming from the area just behind the HVAC control module and then the blower comes on and blows cold air on the floor, however no air comes out of the dashboard a/c vents.
After completely dismantleing the interior and removing the Instrument panel I've traced my problem to an actautor but cannot get it to make the tick, tick, tick sound again. I want to replace it but having trouble removing the old one and cannot find a parts store that carries the part. I'm afraid there is an electrical connector disconnected that is preventing me from getting it to make the ticking sound but if I put it all back together without replacing the actuator, bingo. Any sugesstions, when I connect enough connectors to get the blower to work it blows air out of the right vents.
#61 of 88 1990 Deville air comprsessor not cycling properly
Jun 10, 2010 (6:45 pm)
I had my 90 Deville a/c serviced today, but the air is blowing cool not cold. The compressor kicks on for like 10 seconds and turn off for like a minute then back on for 10 seconds. There are no error codes, what controls the compressor cycling that would not trip a error code?
#62 of 88 Re: 1990 Deville air comprsessor not cycling properly [mrelectricity]
Jun 11, 2010 (12:30 am)
Sounds to me like it's still a little low on freon.
#63 of 88 Re: 1990 Deville air comprsessor not cycling properly [bolivar]
Jun 11, 2010 (7:11 am)
No the freon charge is good.
Jun 25, 2010 (7:26 pm)
I cant figure this out, the a/c was properly serviced the feon level is good (i measured it my self) but the electric climate control keeps switching to econ. I checked the codes by holding off & warmer buttons and there r no ff codes. But if i disconect the battery and reconnnect it, the a/c is real cold for a few minutes then the air gets less cooler to about half an hour later or so the a/c switchs to encono mode. It has to be something electrically in the system. But i can not find schematics to troubleshoot it with does anyone have any? Also when the compressor is working it is cycles on (10 seconds) & off (30-60 seconds) if its like 105 outside & inside I have it set to 60 degrees on auto shouldnt the air compressor run continously? I know the a/c on my olds 2000 sillhoutte runs non-stop when enaged so shouldnt the caddy be the same way? Please i need expert advice?