Commander 4WD V8-4.7L VIN N (2006)
Power Steering Pump: Service and Repair
Initial Operation - With Hydraulic Cooling Fan
INITIAL OPERATION - WITH HYDRAULIC COOLING FAN
CAUTION: THIS SYSTEM REQUIRES THE USE OF HYDRAULIC SYSTEM / POWER STEERING FLUID WHICH MEETS DaimlerChrysler
SPECIFICATION MS-10838 OR EQUIVALENT, DO NOT MIX POWER STEERING FLUID TYPES. DAMAGE MAY RESULT TO THE
POWER STEERING PUMP AND SYSTEM IF ANY OTHER FLUID IS USED, AND DO NOT OVERFILL.
WARNING: THE FLUID LEVEL SHOULD BE CHECKED WITH ENGINE OFF TO PREVENT INJURY FROM MOVING
COMPONENTS.
NOTE: Remove as much of the old fluid out of the system as possible with a suction tool or by removing a hose, When a component has failed. Then
refill it with fresh fluid until it is clean. This may have to be done more than once.
Wipe filler cap clean, then check the fluid level. The dipstick should indicate FULL when the fluid is at normal ambient temperature.
1. Fill the pump fluid reservoir to the proper level and let the fluid settle for at least two minutes.
2. Start the engine and let run for a few seconds then turn engine off.
3. Add fluid if necessary. Repeat the above procedure until the fluid level remains constant after running the engine.
4. Raise the front wheels off the ground.
5. Slowly turn the steering wheel right and left, lightly contacting the wheel stops at least 20 times.
6. Check the fluid level add if necessary.
7. Lower the vehicle, start the engine, and use the DRB III to activate the hydraulic fan on full fan operation.
8. Turn the steering wheel slowly from lock to lock.
9. Stop the engine, check the fluid level and refill as required and repeat the process
CAUTION: Do not run a vehicle with foamy fluid for an extended period. This may cause pump damage.
10. If the fluid is extremely foamy or milky looking, allow the vehicle to stand a few minutes and repeat the procedure.
11. While the vehicle is in park, use the DRB III to activate the hydraulic fan to full fan operation and briefly rev the engine up to 3000 rpm to fully
engage the hydraulic fan.
12. Check the fluid level add if necessary.
