: 2008 DTS Low Rear Suspension...will not adjust to weight

08-09-13, 10:24 AM
Car has some miles on it. It's used as a black car taxi. Out of no where this year, the rear suspension dipped 2 inches and gets lower when people get in. Computer adaptation and replacing all the sensors and parts short of the PCM and the compressor has not fixed this issue. I doubt the compressor has anything to do with it as it works when given power. Is there anything I could have missed?

08-09-13, 12:54 PM
Does the compressor come on if it does what you need are new shock my 06 that I use for livery service with 225,000 miles. I had to change the rear shock twice because the one on the passanger side goes bad. Also check the lifter sensor that is by the drive side passanger wheel. If you haven't change it remove it in the center of the sensor the part that move it has a clip that holds it together remove the the center of and clean it it may fix the problem it a cheap fix with out buying a new sensor.

Ps. Is your car the dt L you may have heavy duty susp.