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Would need to know what DTC'S - diagnostic trouble codes are stored in the module for the autoride suspension . Hooking up a professional type scan tool ,looking at input data to the module etc... Looking at a wiring diagram an testing electrical circuit's using a DMM - digital multi-meter . Reading how the system works ,what all involved in making the system work . This is how a professional Tech would go about diagnosing this .
The automatic level control (ALC) system maintains a desired rear suspension position under all types of towing, hauling and loading conditions. The following components are involved in the operation of the ALC system:
• Air line tubing--Pressurized air from the ALC compressor is pumped to each of the rear shocks via air line tubing.
• Air drier--Pressurized air from the compressor is run through a drier containing a moisture absorbing chemical preventing water accumulation in the rear shocks.
• Compressor--Supplies pressurized air to the rear shocks
• Compressor motor relay--The relay supplies battery positive voltage to the ALC compressor motor.
• Pressure sensor--The electronic suspension control module (ESCM) module provides a 5-volt reference and low reference to the ALC pressure sensor. The module receives the signal voltage that is relative to the air pressure applied to the rear shocks.
• ESCM--Controls the ALC system and electronic suspension control (ESC) system and detects failures in both. The module monitors inputs from the position sensors, and pressure sensor to determine when to raise and lower the vehicle to trim height as the vehicle is loaded or unloaded. The module limits pump activation to 255 seconds to prevent thermal damage.
• Exhaust valve--An electric solenoid activated by the ESCM to vent air pressure from the rear shocks.
• Left and right rear suspension position sensors--The module provides a 5-volt reference and low reference to all 4 of the body-to-wheel suspension position sensors. The sensors send the ESCM a signal voltage that is relative to the rear suspension ride height
• Left and right rear shock absorbers with internal air chambers and dampers--Dampens the rear suspension and maintains trim height depending on the air pressure applied.
if you alter the standard ride height where standard travel shocks are installed , you have to alter the shocks to accommodate the difference in travel for the shocks
2" higher = 2 "longer shocks or 2"' lower =2 " shorter shocks next use a shorter bump stop for the arms so that the stop is not hit on the slightest bump
remember that the engineers design the car for maximum stability and ride comfort and when you decide that you are not happy and change it then stability , road handling and comfort all go out the window
What the leveling system is is basically a height sensor for the rear height, air shocks, an air compressor and air lines. What happens is the height sensor knows what is considered a normal ride height. When people or items are added at the rear seat or trunk the vehicle sits lower. The air compressor will turn on and attempt to pump up the air shocks to raise the height to normal again so the rear end doesn't bottom out.
What can happen is the compressor fails to turn on due to a blown fuse, faulty compressor or defective height sensor. If the compressor turns on the shocks might not be able to pump up due to a line leak or air shock leak.
If you are able to look at the lines or shocks you might find a problem. Otherwise going to your mechanic and have him/her inspect the system to see what the problem might be and then deside if you want to fix it or have them do the repair. Because the light turns on periodically and goes out I would suspect a leak somewhere.
Its likely that you got so used to the soft ride you had with old worn shocks that the new ones feel strange. You could buy a more inexpensive shock to restore that "old" feeling, but I don't think you really want that. One thing you should do though is to make sure by having a couple of people bounce the rear, that the shocks are not binding or are too long and bottoming out part way through the suspension travel. There is a part # stamped into the bottom of the shock just above the weld ...double check that part number to make sure you have the correct ones. Also check the standing height of the back end (compare the height of yours with others you find in parking lots...I have a 93, which measures 171/2" from center of rear wheel hub to edge of wheel flair.) If standing height is too low, shocks are not working at the center of travel but at the lower part. (likely you would have noticed this more with the old shocks though). Additionally, there are adjustable shocks available that you can "tune" to your comfort level...they usually have three settings ...you choose the one that suits you best. Hope something I said will give you a cure or an understandable reason for what you are feeling. Don't forget though that a Jeep is essentially a small truck, as such, it's going to ride like one!