Toyota 4Runner Power steering pump bleeding details?

Power steering pump bleeding details for Toyota 4Runner vehicles.


Vehicles equipped with Rear Wheel Anti-Lock (RWAL) brakes use a different bleeding procedure than those not so equipped. Bleeding the RWAL system requires the use of an electronic brake tester, an expensive unit usually found only at dealers.

Check that the fluid level is within the HOT LEVEL range on the reservoir cap dipstick. If the fluid is cold, check that it is within the COLD LEVEL range.

  1. Keep the vehicle level. With the engine stopped, check the fluid level in the oil reservoir. If necessary, add fluid.
  2. Raise and safely support the front end of the vehicle.
  3. With the engine stopped, turn the wheel slowly from lock to lock several times.
  4. Lower the vehicle and start the engine. Allow the engine idle for a few minutes. With the engine idling, turn the wheel to left or right full lock position and keep it there for 2 - 3 seconds, then turn the wheel to the opposite full lock position and keep it there for 2 - 3 seconds. Repeat several times.
  5. Stop the engine and check the fluid for foaming or emulsification.
    If the system has to be bled twice specifically because of foaming or emulsification, check for fluid leaks in the system.
  6. Recheck the fluid level and add fluid as necessary.

These details will help.


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