Diesel Data: Automotive Repair

Power Steering Line/Hose: Service and Repair

Power Steering Pump to Steering Gear Pressure Line - (4.0L) 4.6L

Special Tool(s):




Material:











Removal and Installation

CAUTION: When repairing the power steering system, care should be taken to prevent the entry of foreign material or failure of the power steering components may result.

4.0L and 4.6L engine
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Remove the air cleaner outlet pipe.

4.0L engine
3. Loosen the 3 power steering pump pulley bolts.
4. Rotate the tensioner and remove the accessory drive belt from the power steering pump pulley.
5. Remove the 3 bolts and the power steering pump pulley.
^ To install, tighten to 25 Nm (18 lb-ft).
6. Remove the pressure line-to-A/C compressor stud nut.

4.6L engine
7. Remove the power steering pump pulley.
8. Remove the pressure line bracket-to-pump stud nut.
^ To install, tighten to 7 Nm (62 lb-in).
9. Remove the pressure line bracket-to-steering gear bolt.
^ To install, tighten to 9 Nm (80 lb-in).

4.0L and 4.6L engine
10. Remove the pressure line bracket-to-crossmember bolt.
^ To install, tighten to 9 Nm (80 lb-in).
11. Disconnect the pressure line-to-pump fitting.
^ Discard the Teflon(R) seal.
^ To install, tighten to 65 Nm (48 lb-ft).

12. CAUTION: When installing the pressure and return lines to the steering gear, make sure the lines are fully seated into the steering gear prior to installing the clamp plate. Additionally, make sure that the clamp plate surfaces are free of foreign material and debris. DO NOT exceed the specified torque when tightening the clamp plate. Leakage and/or failure of the power steering components may occur.

NOTE: New O-ring seals must be installed any time the lines are disconnected from the steering gear.

Remove the power steering line clamp plate bolt, rotate the clamp plate and remove the power steering pressure line.
^ Discard the O-ring seal.
^ To install, tighten to 23 Nm (17 lb-ft).
13. To install, reverse the removal procedure.

NOTE: New Teflon(R) seals must be installed.

Using the special tool, install a new Teflon(R) seal to the pressure line fitting.





14. For additional information on the accessory drive belt routing, refer to Drive Belts, Mounts, Brackets and Accessories.
^ Fill the power steering system.