Heater won't work

30

Asked by Jfocks Jan 29, 2016 at 07:51 AM about the Cadillac DeVille

Question type: Maintenance & Repair

I have a 93 deville. Bought it and the heater doesn't  
work. The previous owner has a switch from the
relay under hood to inside. It works but only on full
blast. Hhow do I fix the original problem? What do I
need under the hood..

7 Answers

225,835

First you would want to wire it back the way it was originally. Then I suspect the blower motor resistor when bad and needs replacing. I suspect the last owner wired it like this as the blower motor resistor cost over $100.

1 people found this helpful.
30

There are two wire harnesses square and one red and one yellow. And they are female. That's where the owner put the wire for homemade switch. Is the male end of these missing? They should go somewhere?? I'm not a mechanic. Trying to get the car back to original and heater to work from inside.. Thanks..

225,835

If you are to give this a shot, why don't you pick up a blower motor resistor so you know what it looks like. The male ends are on that and it will only take the correct plugin so you know what is what. It is expensive for that car (the resistor) so keep the receipt.

30

Ok I have installed the resistor new. Still no heat. Wondering if there is a fuse for this or ac programmer bad or blower motor. It's really cold and I need a defroster.

2 people found this helpful.
20

My cadilac devill i can feel the heat but the fan is not blowing it out those it mean that the fan is no good if is not whats the problem

2 people found this helpful.

Your Answer:

DeVille

Looking for a Used DeVille in your area?

CarGurus has 203 nationwide DeVille listings starting at $3,950.

ZIP:

Own this car?

Share your experience with others.

CarGurus Experts

  • #1
    James Sparrow
    Reputation
    4,110
  • #2
    tuff4x4
    Reputation
    3,140
  • #3
    Cynthiasmith
    Reputation
    2,840
View All

Know more, shop wisely

Search

Related Models For Sale

Used Cadillac DTS
16 Great Deals out of 335 listings starting at $2,380
Used Cadillac Eldorado
116 listings starting at $5,995
Used Cadillac Escalade
493 Great Deals out of 6,799 listings starting at $3,995
Used Cadillac CTS
76 Great Deals out of 1,196 listings starting at $875
Used Lincoln Town Car
4 Great Deals out of 364 listings starting at $3,497
Used Mercedes-Benz S-Class
311 Great Deals out of 5,939 listings starting at $1,100
Used Chevrolet Impala
183 Great Deals out of 3,374 listings starting at $1,480
Used Cadillac Seville
42 listings
Used Cadillac XTS
61 Great Deals out of 1,009 listings starting at $4,995
Used Cadillac Escalade ESV
236 Great Deals out of 3,876 listings starting at $3,995
Used Lincoln Continental
28 Great Deals out of 395 listings starting at $5,400
Used Chevrolet Corvette
703 Great Deals out of 10,349 listings starting at $4,995
Used Cadillac CT6
20 Great Deals out of 394 listings starting at $10,999

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. Content will be removed if CarGurus becomes aware that it violates our policies.