B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Power Steering Bleeding: Service and Repair
PROCEDURE A VACUUM FILL PROCESS
1. Disconnect the ignition coil harness connector to prevent the engine from starting.
2. Fill the reservoir.
3. Crank the engine with the starter and continue adding fluid until the level remains constant.
CAUTION: Be careful to avoid prolonged cranking as the battery may be drained and the starter damaged.
4. Rotate the steering wheel approximately 30— each side of center while continuing to crank the engine.
5. Re-check the fluid level and fill as required.
6. Reconnect the ignition coil harness connector.
7. To clear fault codes, disconnect the battery for one minute and then reconnect the battery.
8. Start the engine, allow it to run for several minutes. Rotate the steering wheel from stop to stop.
9. Shut off the engine and re-check the fluid level. Add as required.
NOTE: Fabricate a devac purging tool as shown in the illustration.
PROCEDURE B DEVAC SYSTEM
1. Tightly insert the rubber stopper of the air evacuator assembly into power steering oil reservoir.
2. Reconnect ignition connection and start engine.
3. Apply vacuum for minimum of three minutes at idle; maintain maximum vacuum of 68 - 85 kPa (20 - 25 inch-Hg) with vacuum source.
4. Release vacuum and remove vacuum source.
5. Add fluid to FULL WARM or power steering oil reservoir center mark.
6. Reinstall vacuum source and apply a vacuum of 68 - 85 kPa (20 - 25 inch-Hg).
7. Cycle steering wheel from lock to lock every 30 seconds for approximately 5 minutes.
CAUTION: Do not hold steering wheel on stops.
8. Shut engine off, release vacuum and remove vacuum source.
9. Add fluid if necessary and install dipstick or reservoir cap.