Question about 1991 Chrysler Imperial

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Automatic load-leveling system not working in the rear how to bypass it

How do i bypass the automatic load-leveling system in the rear and bring it back up

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  • ronaldbishop Apr 26, 2009

    I have the same problem with the air suspension load leveler system not working on either front or rear...any ideas?

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The cheapest fix is to install aftermarket air shocks

Posted on Oct 01, 2008

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Where exactly is the switch for the air suspension compressor on a 2006 Buick Lucerne CXL?


The automatic level control (ALC) system maintains a desired rear suspension position under all types of towing, hauling, and loading conditions.
The system uses the electronic suspension control module (ESCM), ALC relay, ALC compressor assembly, air dryer, air lines, LR and RR shock absorbers with integral air chambers, LR and RR suspension position sensors, exhaust valve, driver information center (DIC), and the serial data circuit to perform the system functions.
What switch ? there are sensors at the wheels that control the system .
The system uses the automatic level control module (ALCM) with integral suspension position sensor, ALC relay, ALC compressor assembly, air dryer, air lines, LR and RR shock absorbers with integral air chambers, exhaust valve, driver information center (DIC), and the serial data circuit to perform the system functions.

The

Jul 10, 2016 | Buick Cars & Trucks

1 Answer

Is there a way to bypass the leveling system S55 AMG, can't load car onto trailer. It's too low


You can try and activate the air compressor at the pump relay, but if you have a serious leak that will not work.

Apr 15, 2016 | Cars & Trucks

1 Answer

My check your air suspension warning light came on. I checked the book that came with the car and it said, it could be in the electic part of it. So my question to u is what can the electric part be?


It's mostly electronic , There is a control module ,sensor's at the corners ,wheels , an electric compressor to pump air to raise the vehicle .
You don't say what make , model an year vehicle but there all pretty much the same . This is for a Cadillac Deville
The electronic suspension control (ESC) system consists of the following components:
?€¢
Electronic suspension control (ESC) module (3)


?€¢
Four dampers contained in the 2 front struts (5 and 6) and the 2 rear shock absorbers (1 and 9)


?€¢
Four positions sensors (2, 4, 7, and 8)


?€¢
ALC air compressor module (10)


?€¢
Damper relay (not shown)


?€¢
ELC relay (not shown)

The ESC system with rear automatic level control (ALC) controls damping forces in the front struts and rear shock absorbers in response to various road and driving conditions. The rear ALC portion of the system maintains a proper vehicle trim height under various vehicle load conditions. For more information on the ALC, refer to Automatic Level Control Description and Operation in Automatic Level Control.
The ESC module receives the following inputs: wheel-to-body position, vehicle speed, and lift/dive. The ESC module evaluates these inputs and controls actuators in each of the dampers independently to provide varied levels of suspension control.
Your best bet is take it to the dealer !

Jan 12, 2016 | Cars & Trucks

1 Answer

2003 Yukon Denali has Service ride Control Warning..wat to do?


Hi Jose:
The first place to start is to have Ride Control Module scanned for trouble codes, this requires a high end scan tool. Most common problem is the air compressor in the rear or a height sensor. Here is how the system works.

Automatic Level Control Description and Operation
The RTD system is bi-state real time damping system. The Suspension Control module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system and electronic variable orifice (EVO) power steering system.

The Automatic Level Control system consists of the following:
• Suspension Control Module
• Compressor/Leveling Module
- Air Pressure Sensor
- Exhaust Solenoid
• Compressor Motor Relay

The objective of the Automatic Level Control System is to provide constant ride height at all load conditions. The Suspension Control module monitors body-to-wheel height, and vehicle speed.

The Suspension Control module will use the rear body-to-wheel displacements and vehicle speed inputs to keep the rear trim height of the vehicle at its desired level.

The electronic suspension control (ESC) system is bi-state real time damping system. The ESC module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system, if 1500 series.

The ESC system consists of the following:
• The ESC module
• The compressor/leveling module, if 1500 series
- The air pressure sensor, if 1500 series
- The exhaust solenoid, if 1500 series
• The compressor motor relay, if 1500 series
• The steering handwheel speed/position sensor
• The suspension damper solenoids
• The suspension position sensors

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Nov 16, 2011 | 2003 GMC Yukon Denali

1 Answer

What causes the vehicle to idle down then back up only when stopped or in park?


The drag from the transmission and the power assist for the power brakes andthe extra load of the brake lights on the electrical sytem, may accially slow down the altentor lowering the total system voltage, in the long run changing the voltage at the engine sensers, throwing the computers tune of the motor off some.. cars built since 1980 that have fuel injection shouldn't do this very little or none at all. The reason is that the fuel system has an automatic idel speed motor that catches the idel and holds it at the right level no matter what the load. This system has limits and problems that limit it's ability to keep the idel right. Then theres the other way around. There's a vacume leak or other problem making the engine idel too fast and when the loads are added ( power steering , in gear automatic trans, airconditioner, raditor fan ) bring the engine to the correct level and the system will keep it from going any lower.

Jun 01, 2010 | Cars & Trucks

1 Answer

Automatic load leveler


The load leveler will be located on the rear axle. It will mount to the axle and have a scissor arm that extends to the body. This replacement is fairly simple, remove the mounting bolts on the axle and then unclip the scissor arm off of the body and re-install new part. Pay attention to where the scissor arm is mounted.

Apr 07, 2009 | 2002 Pontiac Bonneville

2 Answers

Air Ride on 1994 Buick Park Avenue


You have what is called a height/load leveler switch located on rear axle of vehicle .Check to see if the arm (which moves and kicks on compressor when ride height is low) Is connected and moving freely..You then might want to make sure that the air supply lines atatched to air shocks or air bags are not leaking.. If all checks out fine and you decide to disable compressor you can do this by unplugging harness that connects to compressor...And then you can manually adjust your ride height by adding air to the valve on compressor (it resembles a tire valve stem) this will adjust your your ride height and you can let air out at same location if lower height is desired.. This is a little inconveinient but will bypass automatic system as you requested.

Dec 26, 2008 | 1991 Buick Park Avenue

3 Answers

Nivomat self- leveling or not.


Automatic self-levelling is standard on the seven-seat models. What model do you have?

Oct 04, 2008 | 1990 Volvo 740

1 Answer

Automatic leveling suspinsion


There is a load sensor that tells the computer to turn the pump on and level the car, this is not adjustable on most systems, but the sensor itself may be giving an incorrect signal and hence the low in the rear condition, or high in the front, so the dealer is correct in his answer, but the low ride height condition indicates a problem in the system, and that can be fixed.

Sep 18, 2008 | 2008 Cadillac Escalade Ext

1 Answer

2003 X5, 73,000 miles, just bought; rear suspension seems to sag a bit, any adjustment?


If yours has the automatic load levelling system with air bags, you probably have a hole in one or both bags. I went through this and it isn't cheap. Good luch.

Aug 03, 2008 | 2002 BMW 5 Series

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