Hoses, Pressure and Return

Removal

1. Disconnect battery ground cable (14301).

2. Remove engine air cleaner (ACL) (9600) .

3. Disconnect electrical connector in back of radiator electric motor (8K621) .

4. Remove radiator fan shroud (8146) .

5. Disconnect integrated module harness from headlamp harness and place module on top of engine to provide accessibility to power steering lines.

6. Remove wiring harness guide retaining screws and position guide aside.

7. Remove screw at power steering hose bracket (3C510) .

8. Remove anti-rattle clip.

9. Disconnect electrical connector on power steering pressure switch (PSP switch) (3N824) at steering gear (3504) .

10. Remove plastic strap retaining tubes to steering gear .

11. Remove power steering pressure hose (3A719) at power steering pump (3A674) .

12. Loosen clamp and remove power steering return hose (3A713) at power steering pump .

13. Remove power steering return hose at power steering pump .

14. Remove power steering pressure hose at steering gear .

Installation

1. Position power steering pressure hose and power steering return hose .

2. Connect power steering pressure hose and power steering return hose at power steering pump and steering gear .

3. Tighten fittings to 34-46 Nm (26-33 lb-ft). Tighten hose clamps to 1.4-2 Nm (13-17 lb-in).

4. Install screw at power steering hose bracket .

5. Install anti-rattle clip.

6. Install plastic strap retaining power steering pressure hose and power steering return hose to transfer tube on steering gear .

7. Connect power steering pressure electrical connector to power steering pressure switch .

8. Install wiring harness guide.

9. Position integrated module to top of fan shroud and connect module harness to headlamp harness.

10. Install fan shroud .

11. Connect electrical connector to radiator electric motor .

12. Install engine air cleaner .

13. Connect battery ground cable .

14. Fill system. Refer to Section 11-00.

Hose Fittings, Pressure and Return Line at Steering Gear and Pump

If a leak occurs between the tubing and tube nut, replace the power steering pressure hose / power steering return hose assembly. If a leak occurs between the tube nut and the aluminum steering gear housing (3548) or power steering pump outlet fitting, replace the plastic washer. The following procedure should be used:

1. Check fittings to determine which fitting is leaking and whether leak is between tube and tube nut or between tube nut and steering gear housing or power steering pump outlet fitting.

    CAUTION: DO NOT over-tighten. If tube nuts are overtorqued, stripping of housing threads may occur and bores may concave.

2. If leak is between tube nut and steering gear housing or power steering pump outlet fitting, check to ensure nut is tightened to 27-34 Nm (20-25 lb-ft).

3. If leak continues or if leak is between tube and tube nut, remove power steering pressure hose / power steering return hose.

4. Unscrew tube nut, and inspect plastic seal washer. Always replace plastic seal washer (pressure line plastic washer at steering gear , 388897-S, and return line plastic washer at steering gear or power steering pump outlet, 388898-S) when power steering pressure hose / power steering return hose is removed. To facilitate assembly of new plastic seal washer, a tapered shaft may be required to stretch washer, so it may be slipped over tube nut threads.
   
   
   
   

5. The o-ring (3Z728) cannot be serviced with this design. If leak is due to the o-ring , replace the power steering pressure hose / power steering return hose assembly.

6. Connect tube nuts and tighten to 27-34 Nm (20-25 lb-ft). Install plastic strap to retain power steering pressure hose and power steering return hose to power steering left turn pressure hose (3A714) .

   The quick connect fittings may disengage if not fully assembled, if the snap ring is missing, or if the tube nut, or the hose end is not machined properly.

   If the fitting disengages, replace the power steering pressure hose / power steering return hose assembly. The fitting is fully engaged only when the power steering pressure hose / power steering return hose will not pull out. To test for positive engagement, the system should be properly filled, the engine started, and the steering wheel (3600) cycled from lock-to-lock. Service power steering pressure hose / power steering return hose assemblies have tube nuts, snap rings and o-rings already connected.