Bleed Procedure
Tools Required
• | J 43485 Power
Steering Bleeder Adapter |
• | Bleed the steering system for the following reasons: |
- | Components were replaced |
- | The fluid line was disconnected |
- | Steering system noise occurs |
- | In order to prevention pump damage |
- | To ensure proper system operation |
| Important: Use clean, new power steering fluid type only.
|
• | Refer to the Maintenance Lubrication subsection for fluid specifications. |
• |
Important: Hoses touching the frame, body or engine may cause system noise.
Verify that the hoses do not touch any other part of the vehicle. |
• |
Important: Loose connections may not leak, but may allow air into the steering
system.
Verify that all of the hose connections are tight. |
Important: Maintain the fluid level throughout the bleeding procedure.
- Remove the pump reservoir cap.
- Fill the pump reservoir with fluid to the "FULL COLD"
level.
- Attach the J 43485
to the J 35555
or an equivalent.
- Place the J 43485
in/on the pump reservoir filler neck.
- Apply a vacuum of 20 in Hg maximum.
- Wait 5 minutes.
Typical vacuum drop is 2-3 in Hg. If the vacuum
does not remain steady, refer to Special Conditions at the end of this procedure.
- Install the pump reservoir
cap.
- Start the engine. Allow the engine to idle.
- Turn off the engine.
- Verify the fluid level. Repeat steps 8 through 10 until the fluid
stabilizes.
- Start the engine. Allow
the engine to idle.
Important: Do not turn the steering wheel to lock.
- Turn the steering wheel 180-360 degrees in both directions
5 times.
- Turn the ignition switch
off.
- Verify the fluid level.
- Remove the pump reservoir
cap.
- Attach the J 43485
to the J 35555
or an equivalent.
- Place the J 43485
in/on the pump reservoir filler neck.
- Apply a vacuum of 20 in Hg maximum.
- Wait 5 minutes.
- Verify the fluid level.
- Install the pump reservoir
cap.
Special Conditions Procedure
Tools Required
• | J 43485 Power
Steering Bleed Adapter |
- If the vacuum continues
to drop, remove the pressure and return hose from the pump.
- Install the plugs (1, 2) supplied with the J 43485
into the pressure and return ports.
- Attach the J 43485
to theJ 35555
or an equivalent.
- Place the J 43485
in/on the pump reservoir filler neck.
- Apply a vacuum of 20 in Hg maximum.
- If the vacuum drops again, repair or replace the pump. If the
vacuum holds steady, continue to inspect the other parts of the steering system.
Important:
• | The fluid must be free from bubbles. Periodic bubbles may indicate
a loose connection or leaking O-ring seal in the return hose or the pressure
hose. |
• | The fluid must be free from discoloration. |
- Observe the fluid.
- If discoloration persists, replace the following parts:
• | The return hose O-rings |
• | The pressure hose O-rings |
• | The gear cylinder line O-rings |
• | The reservoir to pump O-ring |
- Repeat the entire bleeding
procedure.
- Drive the vehicle approximately 16 km (10 mi) in
order to warm the system to operating temperature. Evaluate the vehicle on
a smooth flat surface.
- Verify the following conditions:
- To check for noise problems, verify the following items:
• | There is smooth power assist. |
• | The vehicle operates quietly. |
• | The pump maintains the proper fluid level. |
• | There is no leaking in the steering system. |
• | The fluid is free of foam or discoloration. |