Question about 1989 Cadillac Sedan DeVille

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How do you repair a heater core in a 1989 cadillac deville sedan

Repair and replacement of heater core

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6ya6ya
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Posted on Jan 02, 2017

emissionwiz
  • 75108 Answers

SOURCE: 63 cadillac sedan deville heater core removal and installation instructions

I do think you have to pull he dash, for that you will need a manusl, try ebay for used factory manuals, I have had good luck getting them there for all my cars.

Posted on Oct 17, 2008

duane_wong
  • 6826 Answers

SOURCE: 1992 cadillac deville, driver's side seat belt

OK, I had the same problem with my 1990 Cadillac Deville. Had to go to a junk yard where they gave me the entire bolted on assembly. I got a 3/8" impact wrench and unbolted the belt buckle from the frame, and did the same to the one on the assembly they gave me. After that my buckle worked great. The color even matched the old one.

Posted on Jul 08, 2010

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My heat doesnt work in my 1989 cadillac sedan deville is there a fuse I can check


Yes...

FREE drawings:

BBB Industries has TECHNICAL SERVICE BULLETINS and WIRING DIAGRAMS available for most popular USA market vehicles (registration is required).

Else your quality factory repair manuals SALES
could still be available... you would have to search the internet to find specialty dealers (try eBay).

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1989 sedan Deville factory repair manual

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Dec 08, 2016 | Cadillac Cars & Trucks

1 Answer

Heater core replacement


You won't like the answer, but I believe the entire dash must be removed for access.

Apr 03, 2014 | 1989 Cadillac Sedan DeVille

1 Answer

HEAT NOT WORKIN IN 1989 CADILLAC?


either the blower motor is bad or you need to flush out the heater core.due to the age of the vehicle its probably clogged up with deposits and needs to be flushed out with air pressure or you can try hooking up your garden hose to it and flushi9ng it out that way

Jan 25, 2013 | 1989 Cadillac Sedan DeVille

2 Answers

Got an 1989 cady deville not getting good heat thermostat is ok but jts sending out cold air what else can i do


heater core may be blocked u may have to disconnect and attach a garden hose back and forth at each end to free the blockage if your able or replace the core

Dec 29, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

No heat at all


If your thermostat is good, engine temp is normal but no heat from the heater, then either the heater core is bad which is the most common thing. Or the valve that moves when you move temp setting from cold to hot is not moving or disconnnected. This switch would be next to firewall on driver's side. You can go to autozone.com and register for full free online repair manual for your car. I do believe your heater core will have to be replaced.

Dec 19, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

Heating system


heater core has a restriction inside of it replace heater core and it will heat all of the time

Jan 28, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

Heat not working on 89 sedan deville


The heater mabey cause from many things easy to check are your thermostat. heater core or low antifreeze

Jan 12, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

63 cadillac sedan deville heater core removal and installation instructions


I do think you have to pull he dash, for that you will need a manusl, try ebay for used factory manuals, I have had good luck getting them there for all my cars.

Oct 17, 2008 | Cadillac DeVille Cars & Trucks

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