No power, shhhh sound from ehaust pipe when engine is revved up
Cadillac stopped making the Coupe DeVille after 1993.
Check fuses
If a 2001 Cadillac DeVille shakes when the car is idle, there could be an issue with the powertrain. There could also be a problem with the crankshaft position sensor.
Assuming that the a/c was in good shape before it suddenly stopped working, the problem is probably the blower motor. As it turns out, this is very common. Try searching answered questions under "blower motor 1997 Cadillac Deville" I just had to change mine in a 1996 Deville. Motor aprox. $240.00/Labor aprox. $100.
usually the vehicle will start to lose power and this especially noticeable going up hill. you may hear a swoosh swoosh swooshing sound coming out of the tailpipe like it is partially stopped up instead of the regular purring that it should make.
If the converter is stopped up your engine will not run. cars that have a converter stopping up will have a different burning type smell. When you get your emissions checked, one of the items that is checked is the converter.
You don't have to change or remove the converter unless the converter is stopped up.
There is only one thing you can do and that is to replace the clogged converter. There is no way to unclog it.
There is no cleaner for a catalytic converter. If it is stopped up you must replace it.
did you do a car to car jump or a portable jumper box? on cadillacs you shouldn't do car to car jumps do to there's a chance it'll mess up you computer system. vonshay_m2002@yahoo.com
incase u didnt know there are five horns i to have a 98 deville delegance 2 are under car 1 next to the battery i honestly cant remember where the other 1s are but wen u look at the 1 by the battery look 4 4 more of those its probably a fuse or relay if they all stopped working at once
Sounds like your master drivers side window switch is on its way out. If you can find a working used one you can save some money. It will interchange with Cadillac Deville, Fleetwood FWD 4 doors from 85-93. Also a lot of the 4 door Olds 98 (85-90) and Olds 88 (86-91) have the IDENTICAL switch.