Electronic Level Ride System May Fail on Cadillac DeVille

The electronic level ride system may not work properly; this may result in the rear of the vehicle riding too high or too low. Our technicians tell us that a height sensor or exhaust valve failure are common issues with this system. Proper diagnoses will be necessary to confirm the exact fault.

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Average mileage: 145,758 (32,000–2,245,550)
15 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005
115 people reported this problem
53 people shared problem details
when i drive down the road the rearend sways side to side. i haven't tried anything yet. i am looking for the solution.
Upvoted (19)Flag Inappropriate
My car is not sitting at the proper height,Its saging and I have to watch how I back out of driveways.Its not sagging to the ground.
Upvoted (16)Flag Inappropriate
rear air shocks leaked. WAY expensive to replace with OEM, so installed spring shocks and bypass resistors. Worked great!
Upvoted (16)Flag Inappropriate
My car is riding to low. I dont have the money for repairs.But,i can do it my self,if someone tell me/
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1998 Cadillac DeVille145,000
rear of car rides too low; mud flaps drag
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Compressor does not run. Checked relay/ fuses. Ok.
Vehicle seldom used to transport passengers. First noticed when two persons, with baggage, was being transported to Airport, noticed vehicle ride was exceptionally rough and very low in the rear, barely clearing the ground. It continued to sit low but ride improved when passengers were dropped. A check with the Cadillac Dealer quoted an outrageous price to diagnose the problem, therefore, no repair or diagnosis were ever done to date. Vehicle has only 72,000 miles.
The rear of this car,seems to sit a little higher
1990 Cadillac DeVille130,000
my 1990 Cadillac Deville Coupe's rear end drops down after about 10 minutes of driving. I have 20 inch rims on it so that is a problem because the tires rub. i put on new shocks thinking that was the problem, for the most part its fixed but say when i drive up a steep hill and the back end drops below a certian point the back end wont level back up to where it should be
rear end too low!
1998 Cadillac DeVille174,000
Just bought the car and it says service ride system my dad said I need to do the shock conversion beclouded my air bags aren't working
My car leveling system as failed and is riding to low. How do I fix it
1999 Cadillac DeVille129,000
back end of car is sitting on the bumper stops seems like when i haul my kids
2004 Cadillac DeVille2,245,550
Level ride not working car setting too low
I have a 2005 Cadillac dts that the rear air ride compressor is not working, if I banged on the old one it would work sometimes. Bought a new compressor and installed and the compressor still doesn't work.
With any weight in the trunk the bottom sags and rides low.
1999 Cadillac DeVille119,000
the car was running fine until a few days ago. the rear end appears to be jacked up, & the ride is bumpy, uncomfortable & sways over bumps. i was told i needed a rear conversion kit to spring coils, but someone else informed me it may be a height sensor switch. am having it checked this weekend, will keep the site updated to results.
1995 Cadillac DeVille100,000
replaced front struts
1990 Cadillac DeVille125,000
Rear shocks rise all the way up for a rough ride
Looks level but extremely soft ride and bottoms out easily when going over slight bumps or RR crossings.
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