GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Power Steering Pump

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REMOVAL & INSTALLATION



See Figures 1 and 2

  1. Remove the hoses at the pump and tape the openings shut to prevent leakage.
  2.  
  3. Remove the pump drive belt.
  4.  
  5. Remove the retaining bolts, any braces and the pump.
  6.  
  7. If a new pump is being installed, and the pulley is being transferred, a puller is necessary to remove the pulley.
  8.  

To install:
  1. Torque hose fittings to 20 ft. lbs. (27 Nm). Fill the reservoir with approved power steering fluid and turn the pump backward (counterclockwise as viewed from in front) until bubbles no longer appear in the reservoir.
  2.  
  3. Any time the pump is removed, air must be bled from the system upon reinstallation. Bleed the system as described in the next procedure.
  4.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the power steering pump asssembly



Click image to see an enlarged view

Fig. Fig. 2: A common power steering pump location

BLEEDING



To bleed the system, proceed as follows:

  1. Raise the vehicle in the air and support it with jackstands.
  2.  
  3. Start the engine and let it run at a fast idle.
  4.  
  5. Having made sure the fluid level in the pump is correct, turn the wheels from side to side without hitting the stops.
  6.  
  7. After doing this several times, check the fluid. Fluid with air in it will have a light tan or red appearance.
  8.  
  9. Continue with this procedure until the air is bled from the system. Fill the pump with fluid and road-test the vehicle.
  10.  

 
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