Operation CHARM: Car repair manuals for everyone.

Power Steering System Flushing




Power Steering System Flushing

Note:
Do not reuse any drained power steering fluid regardless of appearance or condition.

1. Raise the vehicle until the front wheels are off the ground. Refer to Lifting and Jacking the Vehicle Service and Repair.

2. Place a large drain pan under the vehicle in order to collect the draining fluid.

3. Remove the fluid return hose at the power steering fluid reservoir or the pump inlet connection, as applicable.

4. Plug the reservoir return hose inlet connection on the power steering fluid reservoir or the pump, as applicable.

Note:
This step may require 4 L (4 qt) of power steering fluid until the draining fluid appears clear.

5. Have an assistant maintain the minimum fluid level in the reservoir using clean, new power steering fluid. Refer to Checking and Adding Power Steering Fluid Power Steering.

6. With the key in the ON position and with the engine OFF, turn the steering wheel fully to the left and to the right. Continue until the fluid from the return hose runs clear.

7. Remove the plug and install the fluid return hose to the power steering fluid reservoir or the pump inlet connection, as applicable.

8. Bleed the power steering system. Refer to Power Steering System Bleeding Service and Repair.

9. Inspect the power steering fluid for the following indications of contamination:

* Milky fluid - water

* Brown fluid - burnt

* Plastic debris or dirt chunks

10. If the fluid is contaminated, repeat steps 3-9.

11. Remove the drain pan.

12. Lower the vehicle.