- Make sure the tires are properly inflated. See the driver’s doorjamb label for more information.
- With the vehicle on the ground, start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
- Warm up the power steering (P/S) fluid by letting the engine idle with the transmission in P, and turn the steering wheel from lock to lock about 20 times.
NOTE: If you do not heat up the P/S fluid, your diagnosis may not be correct.
- After the P/S fluid is warmed up, turn the steering wheel from lock to lock, and note the steering wheel effort.
- Continue turning the wheel from lock to lock, and raise the engine RPM to between 1,500 and 2,000. Note the steering wheel effort and compare it with the steering effort when the engine is idling.
- Do not drain the power steering fluid to replace the pump because the issue with the pump does not affect the fluid.
- Take care not to spill any P/S fluid on the vehicle body or other parts. Wipe off any spilled fluid immediately.
- Remove the engine cover.
- Disconnect the IMT actuator connector (if applicable).
- Remove the drive belt from the P/S pump pulley. Make sure no P/S fluid gets on the belt.
- Cover the auto-tensioner, the alternator, and the A/C compressor with shop towels to protect them from any spilled P/S fluid.
- Disconnect the inlet and outlet hoses from the P/S pump, and plug the open ends.
- Remove the pump mounting bolts and the pump.
- Hold the pump in a vise with soft jaws, then remove the pulley nut and pulley. Be careful not to damage the pump housing with the jaws of the vise.
- Install the pulley and the pulley nut on the new P/S pump. Torque the nut to 64 N.m (47 lb-ft).
- Install the pump to its bracket with the mounting bolts, then torque the bolts to 24 N.m (17 lb-ft).
- Connect the inlet hose to the pump.
- Place a new O-ring on the outlet hose, then connect the outlet hose to the pump, and torque it to 11 N.m (8 lb-ft).
- Reinstall the drive belt.
- Reconnect the IMT connector.
- Reinstall the engine cover.
- Make sure the P/S reservoir is filled to the upper line.
- Bleed the air from the P/S system:
NOTE: If the pump is making a buzzing noise like in the sound file below, the pump is OK. There is still air trapped in the system. Repeat the air bleeding procedure.
- Recheck the reservoir to make sure it is filled to the upper line.
- Return the original pump for remanufacturing. Refer to Parts Information Bulletin A08-009, Remanufactured Steering Pump Program for packing and return instructions. To avoid a core charge, return the pump as instructed.