Power Steering System Bleeding
WARNING:
The fluid level should be checked with engine off to prevent injury from moving components.
CAUTION:
If the air is not purged from the power steering system correctly, pump failure could result.
NOTE:
Use Pentosin CHF 11S power steering fluid meeting Material Standard MS-11655.
NOTE:
Be sure the vacuum tool used in the following procedure is clean and free of any fluids.
- Check the fluid level. As measured on the side of the reservoir, the level should indicate between MAX and MIN when the fluid is at normal ambient temperature. Adjust the fluid level as necessary. Refer to FLUID, STANDARD PROCEDURE .
- Tightly insert a suitable power steering cap adapter (4), into the mouth of the reservoir (3).CAUTION:
Failure to use a vacuum pump reservoir (1) may allow power steering fluid to be sucked into the hand vacuum pump.
- Attach Hand Vacuum Pump (2), Special Tool (special tool #C-4207-A, Vacuum Pump, Hand) or equivalent, with reservoir (1) attached, to the Power Steering Cap Adapter (4).CAUTION:
Do not run the engine while vacuum is applied to the power steering system. Damage to the power steering pump can occur.
NOTE:When performing the following step make sure the vacuum level is maintained during the entire time period.
- Using the hand vacuum pump (2), apply 68-85 kPa (20-25 in. Hg) of vacuum to the system for a minimum of three minutes.
- Slowly release the vacuum and remove the special tools.
- Adjust the fluid level as necessary. Refer to 1.
- Repeat through. Refer to 1. until the fluid no longer drops when vacuum is applied. Refer to 6.
- Start the engine and cycle the steering wheel lock-to-lock three times.NOTE:
Do not hold the steering wheel at the stops.
- Stop the engine and check for leaks at all connections.
- Check for any signs of air in the reservoir and check the fluid level. If air is present, repeat the procedure as necessary.