Savana 1/2 Ton Van V8-5.3L VIN T (2003)
25. Reinstall the pump reservoir cap.
Excessive Vacuum Drop Diagnosis
1. If the vacuum continues to drop, remove the pressure and return hose from the pump.
2. Install the plugs (1,2) supplied with the J43485 into the pressure and return port.
3. Attach the J43485 to the J35555 or equivalent.
4. Place the J43485 on or in the pump reservoir filler neck.
5. Apply a vacuum of 68 kPa (20 in Hg) maximum.
6. If the vacuum drops again, repair or replace the pump. If the vacuum holds steady, continue to check the other parts of the steering system.
Important: Fluid must be free from bubbles and foam. Be aware of periodic bubbles that indicate a loose connection or leaking O-ring seal in the
return hose or the pressure hose.
Fluid must be free from discoloration.
7. Observe the fluid.
8. If condition persists, replace the following parts
