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1991 Cadillac DeVille Questions & Answers
My 1991 cadillac deville idles ok sometimes, then
why would you have the brakes checked if your engine is running poorly. the engine while running makes vacuum and if that is not running correctly it will effect other systems. brakes for one work of a vacuum booster. so no vacuum sure the brake pedal will be hard to work. you will want to pull the plugs and test the compression of all the cylinders and write them down and compare that numbers first. my guess you have some bad valve issue or what they call blow bye and losing compression on 1 or more pistons. which may need to remove the heads and rebuild or replace. or even replace the engine all together depending on whats wrong. start with a compression test and go from there.
Cadillac Deville 2000 Window went down but fails to go back up
first of all try driver master switch then try back door switch
cut on dome light and press button if it is working lights will dim if they do not dim most likly the motor is going bad give it a sharp rap might bring it back up if motor is good you may need a regulator for the window
New battery, completely drains while car not used
The charging system is doing its job It seems to have an electrical short which is draining the batt. If u have the know how to ck & repair electrical shorts then go after it, if not, take it in.
Running on 4 cylenders instead of 8
the 8 cyclinder engine is one of the best you will get, forget about all the rest,so this puzzles me,what makes you think this engine is on 4 cyclinders because it should not start on 4,you are not telling me the full story,what happened what was the org problem,please come back to me as this is a new one on me.adrian
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