Power Steering Cooler Replacement Parts and Service Information

Modifications to the power steering cooler system have resulted in the following changes:

The purpose of this bulletin is to provide the technician instructions for installing the 2nd design "fin" style power steering cooler assembly on vehicles equipped with the 1st design "loop" style power steering cooler assembly.

Tools Required:

1. Open the hood.



2. Use a metric thread setter kit, Snap-on™ HP650M, or equivalent, to install an insert nut into the two existing holes on the engine side of the front bumper impact bar. Ensure the insert nuts do NOT rotate.
3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in the General Information sub-section of the Service Manual or SI document ID #813128.
4. Remove the front air deflector. Refer to Air Deflector Replacement-Front in the Body Front End sub-section of the Service Manual or SI document ID #885511.
5. Install a drain pan under vehicle.



6. Disconnect the power steering cooler hose from the power steering lines.



7. Remove the retaining bolts that attach the power steering cooler retaining brackets to the A/C condenser.
8. Remove the "loop" style power steering fluid cooler assembly from the vehicle.



9. Remove the retaining bracket from the "loop" style power steering cooler. This bracket will be installed on the new power steering cooler hose assembly in Step 12.



10. Install the new power steering cooler hose assembly to the new "fin" style (2nd design) power steering fluid cooler assembly.
11. Remove/pull off the pink tabs from the new hose assembly.
12. Install retaining bracket (removed in Step 9) to the new power steering cooler hose assembly.



13. Install the new "fin" style (2nd design) power steering fluid cooler and hose assembly to the front bumper impact bar.
14. Install the lower power steering cooler retaining screw and washer assembly (2), P/N 11516931.

Tighten
Tighten the screw (2) to 27N·m(20 lb ft).

15. Install the upper power steering cooler retaining screw and washer assembly (3) and hand tighten.



16. Connect the power steering cooler hose to the power steering lines.
17. Install the retaining bracket that was installed on the new power steering cooler hose (Step 12) to the A/C condenser assembly.

Tighten
Tighten the bolt to 9N·m(80 lb in).

18. Install the front air deflector. Refer to Air Deflector Replacement-Front in the Body Front End sub-section of the Service Manual or SI document ID #885511.
19. Lower the vehicle.
20. Tighten the upper power steering cooler retaining screw and washer assembly (2), P/N 11516931.

Tighten
Tighten the screw to 27N·m(20 lb ft).

21. Fill and bleed the power steering system. Refer to Bleeding the Power Steering System in the Power Steering System sub-section of the Service Manual or SI document ID #487449.

Parts are currently available from GMSPO.

For vehicles repaired under warranty, use: