Question about 1994 Cadillac DeVille
When I go over a bump it sounds like someone is hamering on my frame
Check the upper air strut mounts for being loose
Have to get under it or put on a lift
Could be exhaust heat shields making noise
The rear air strut won't last the 18 years or so, you
own the car
At about 12 years they rust & leak oil & need to be replaced
Posted on Dec 08, 2012
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Posted on Jan 02, 2017
First thing to check is the switch located in the trunk. You can manually turn off the leveling system if you are going to jack up the car such as for changing a tire. Sometimes people accidentally bump the switch and it gets turned off. If this is not the case check the compressor pump under the hood and see if it has power coming to it. The compressor would be running constantly if you have an air leak. There is also a leveling switch that calls for the pump to come on and off to check out if the compressor is not opearating. If you are getting power to the air pump and it is not operating, the unit may need to be replaced.
Posted on Jul 04, 2009
I would recommend going to strutmasters.com and taking a look at the conversion kits. these convert you from the airbag to a powder coated American made steel coil spring that is guaranteed to last the life of the car. Airbags and compressors are constantly having to be replaced. Also something alot of people don't know is that theses air suspensions are not meant to be in temperatures above 90 Degrees or below 40 Degrees. That is most of the world. The temperature will cause you to replace alot of bags. and typically when your replacing a bag you are going to have to replace the compressor to because the bag had a hole or small crack in it causing the compressor to over work and it will die. I posted the link below so you can take a look http://www.strutmasters.com/lincoln-suspension-parts-s/1.htm I hope I was of some help Good Luck!!!
Posted on May 06, 2009
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