Question about 1993 Cadillac DeVille

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1993 Cadillac Seville SLS Heater stopped working suddenly

Heater not worker ..suggestions

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  • Bill Allen May 11, 2010

    is it blowing but no heat? if so try flushing the cooling system-it worked for me

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Heater coil cloged,or low on coolant/water

Posted on Jan 26, 2009

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I am working on my 1993 cadillac seville sls with the 4.9l engine and am wondering if I can access the fuel pump threw the trunk ?


Not unless you want to cut a hole in the metal.
There is no access panel from the factory that I know of.

Nov 03, 2015 | Cadillac Cars & Trucks

1 Answer

I am working on my1993cadillac seville sls with the 4.9l engine and am wanting to know what the 3 relays are that are on the outside of the fuse box on the right fender under the hood are for


One is fuel pump relay ,has pink with black stripe wire an gray wire .Another is RSS damper relay ,or could be the three cooling fan relays ,pink with white stripe power wires .There is no relay for the instrument cluster .

Oct 30, 2015 | Cadillac Cars & Trucks

1 Answer

IT IS ABOUT WHERE DO I GET THE DESCRIPTION OF ALL OF THE CODES FOR A 1993 CADILLAC SEVILLE SLS WITH A 4.9L V-8


autodata have a book of codes for all GM vehicles
you can get it on line from the autodata site

Oct 16, 2015 | Cadillac Cars & Trucks

2 Answers

My Cadillac Seville SLS has no heater or AC in it how do I get it to work?


The ac works from electricity and the heater may be vacuum controlled by the same circuit so check for fuses problem

Oct 10, 2014 | 1997 Cadillac Seville

1 Answer

Need to replace serpentine belt and idler pulley for 1994 Cadillac Seville SLS and need diagram. It's not under hood on our car. We downloaded one diagram but it was not a match.


I had same issue. 1994 Cadillac Seville SLS serp diagrams not like my engine. Found that it is the same as 1993 Cadillac STS Northstar!
Try that, it worked for me. Good Luck.

Sep 06, 2010 | 1994 Cadillac Seville

1 Answer

1996 cadillac seville sls codes


1996 cadillac sls. Oil light comes on and car stalls. Oil is full

Oct 17, 2008 | 1996 Cadillac Seville CA Value

1 Answer

1993 seville automatic transmission V8 4.9 liter?


neither the 93 seville is just that it's the 4.9 liter before the northstar sts 4.6 came out in same year

Jul 31, 2008 | 1993 Cadillac Seville

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