Diesel Data: Automotive Repair

Power Steering Fluid Cooler: Service and Repair

POWER STEERING COOLER REPLACEMENT

REMOVAL PROCEDURE




1. Open the hood.
2. Place a drain pan under the vehicle.
3. Siphon the fluid from the reservoir to prevent excess spillage.
4. Remove the bolts retaining the power steering cooler from the radiator support. Do not discard the upper spacer.
5. Remove the inlet and outlet cooler hoses from the cooler
6. Remove the cooler from the vehicle.

NOTE: Refer to Power Steering Hose Disconnected Notice in Service Precautions.




7. Disconnect the fitting from the power steering cooler inlet hose at the power steering gear.
8. Remove the clamp retaining power steering cooler outlet hose to the power steering pump.
9. Remove the hoses from the vehicle.

INSTALLATION PROCEDURE




1. Install the hoses to the vehicle.

NOTE: Refer to Fastener Notice in Service Precautions.

2. Connect the the fitting from the power steering cooler inlet hose to the power steering gear

Tighten
Tighten the fittings to 28 N.m (20 lb ft).

3. Install the clamp retaining power steering cooler outlet hose to the power steering pump.




4. Install the power steering cooler to the radiator support.
5. Install the inlet and outlet cooler hoses to the cooler. Verify that the O-rings are in place

Tighten
Tighten the fittings to 28 N.m (20 lb ft).

6. Install the power steering cooler mounting bolts. Do not forget to install the upper spacer.

Tighten
Tighten the bolts retaining the power steering cooler to 5 N.m (44 lb in).

7. Fill and bleed the power steering system.
8. Inspect all the hose connections for leaks.
9. Close the hood