Contents Wiring diagrams Section: Manual & Power Steering All sections

Power Steering System: Other Cadillac STS I

Steering Effort Hard in One or Both Directions

StepActionYesNo
1Did you review the Power Steering System General Description and perform the necessary inspections?Go to Step 2Go to Symptoms - Power Steering System
2Verify that the steering effort is hard in one or both directions. Does the system operate normally?System OKGo to Step 3
3Perform the power steering test procedure. Refer to Power Steering System Test Procedure . Did you complete the procedure?Go to Step 4
4Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Steering Effort Hard in One or Both Directions

Steering Effort Too Easy in One or Both Directions

StepActionYesNo
1Did you review the Power Steering System Description and perform the necessary inspections?Go to Step 2Go to Symptoms - Power Steering System
2Verify that the steering effort is too easy in one or both directions. Does the system operate normally?System OKGo to Step 3
3Perform the power steering test procedure. Refer to Power Steering System Test Procedure . Did you complete the procedure?Go to Step 4
4Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 3

Steering Effort Too Easy in One or Both Directions

Tools Required

  1. J 35555 Metal Mityvac. See «Special Tools»(ref-197600-S17841519732005101200000) .
  2. J 43485 Power Steering Bleeder Adapter. See «Special Tools»(ref-197600-S17841519732005101200000) .
  1. Verify that the hoses do not touch any other part of the vehicle.
  2. Verify that all hose connections are tight.
  3. Remove the pump reservoir cap.
  4. Fill the pump reservoir with fluid to the FULL COLD level.
  5. Attach the J 43485 to the J 35555 or equivalent. See «Special Tools»(ref-197600-S17841519732005101200000) .
  6. Place the J 43485 on or in the pump reservoir filler neck. See «Special Tools»(ref-197600-S17841519732005101200000) .
  7. Apply a vacuum of 68 kPa (20 in Hg) maximum.
  8. Wait 5 minutes. Typical vacuum drop is 7-10 kPa (2-3 in Hg). If the vacuum does not remain steady, refer to Excessive Vacuum Drop Diagnosis at the end of this procedure.
  9. Remove the J 43485 and the J 35555 . See «Special Tools»(ref-197600-S17841519732005101200000) .
  10. Reinstall the pump reservoir cap.
  11. Start the engine. Allow the engine to idle.
  12. Turn off the engine.
  13. Verify the fluid level. Repeat steps 11-13 until the fluid stabilizes.
  14. Start the engine. Allow the engine to idle.
  15. Turn the steering wheel 180-360 degrees in both directions 5 times.
  16. Switch the ignition off.
  17. Verify the fluid level.
  18. Remove the pump reservoir cap.
  19. Attach the J 43485 to the J 35555 or equivalent. See «Special Tools»(ref-197600-S17841519732005101200000) .
  20. Place the J 43485 on or in the pump reservoir filler neck. See «Special Tools»(ref-197600-S17841519732005101200000) .
  21. Apply a vacuum of 68 kPa (20 in Hg) maximum.
  22. Wait 5 minutes.
  23. Remove the J 43485 and the J 35555 . See «Special Tools»(ref-197600-S17841519732005101200000) .
  24. Verify the fluid level.
  25. Reinstall the pump reservoir cap.

Tools Required

J 24319-B Steering Linkage and Tie Rod Puller