Automatic Level Control Air Supply Reservoir Replacement

Special Tools Rear Suspension CH-52667 Air Spring Inflator Equivalent regional tools: Special Tools

Warning

If the air lines need to be removed to perform repairs on any air suspension components, depressurize the Automatic Level Control System. This will prevent vehicle damage or personal injury.

Warning

Do NOT remove Automatic Level Control System components under any circumstances when the system is pressurized. Disconnecting a pressurized air line that is connected to an Automatic Level Control System component can cause damage to components or personal injury.

Caution

After servicing Automatic Air Suspension Leveling System, use Nitrogen to recharge the system. Using compressed air can expose the Automatic Air Suspension Leveling System components to moisture and or dirt resulting in premature wear requiring unnecessary repairs. Removal Procedure

Note

Service mode will be automatically enabled when the ride height sensors detect the vehicle has been lifted off the ground. Service mode will automatically be disabled when the vehicle reaches 16 km/h(10 MPH).

1. Raise the vehicle until the tires are off the ground. Lifting and Jacking the Vehicle
2. Using the scan tool, deflate the automatic level control air supply reservoir.
3. Raise the vehicle.

Automatic Level Control Air Supply Reservoir Replacement — figure 1

4. Remove the air line nut (1) from the automatic level control air supply reservoir.

Automatic Level Control Air Supply Reservoir Replacement — figure 2

5. Remove the chassis wire harness clip (1) from the automatic level control air supply reservoir.

Automatic Level Control Air Supply Reservoir Replacement — figure 3

6. Remove the 3 automatic level control air compressor bolts (1).

7. Automatic Level Control Air Supply Reservoir (2) » Remove Installation Procedure

8. Automatic Level Control Air Supply Reservoir (2) » Install

Caution

Refer to Fastener Caution.

2. Install the 3 automatic level control air compressor bolts (1) and tighten. Fastener Specifications

3. Install the chassis wire harness clip (1) to the automatic level control air supply reservoir.

4. Install the air line nut (1) to the automatic level control air supply reservoir and tighten. Fastener Specifications

Automatic Level Control Air Supply Reservoir Replacement — figure 4

5. Remove the automatic level control air supply reservoir air valve cap (1).
6. Install CH-52667 Air Spring Inflator to the automatic level control air supply reservoir air valve (2) and set the regulator on the nitrogen tank to 16 Bar (232 PSI).
7. Using CH-52667 Air Spring Inflator, open the valve on the pressure gage to fill the automatic level control air supply reservoir.
8. Using CH-52667 Air Spring Inflator and the shop nitrogen tank, fill the automatic level control air supply reservoir to 16 Bar (232 PSI).
9. Close the pressure gauge valve and remove CH-52667 Air Spring Inflator from the automatic level control air supply reservoir.
10. Install the automatic level control air supply reservoir air valve cap (1) and tighten. Fastener Specifications
11. Remove the support and lower the vehicle.