GM Grand Am/Achieva/Calais/Skylark/Somerset 1985-98

Power Steering Rack and Pinion

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ADJUSTMENT



Rack Bearing Preload

See Figure 1

  1. Make the adjustment with the front wheels raised and the steering wheel centered.
  2.  
  3. Loosen the adjuster plug locknut, turn the adjuster plug clockwise until it bottoms in the housing, then back off about 1 /8 turn (35-45°). Tighten the locknut to 50 ft. lbs. (70 Nm) while holding the position of the adjuster plug.
  4.  



Click image to see an enlarged view

Fig. Fig. 1: Adjusting the rack bearing

  1. Check the steering for ability to return to center after the adjustment has been completed.
  2.  

REMOVAL & INSTALLATION



See Figure 2

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the left side sound insulator.
  4.  
  5. Disconnect the upper pinch bolt on the steering coupling assembly.
  6.  
  7. If equipped remove the line retainer.
  8.  
  9. Remove the power brake booster away from the cowl wall, leaving the master cylinder attached.
  10.  
  11. Raise and safely support the vehicle. Remove both front wheel assemblies.
  12.  
  13. Remove the tie rod ends from the struts using Steering Linkage Puller J 24319-01 or equivalent.
  14.  
  15. Carefully lower the vehicle.
  16.  
  17. Unfasten the left and right mounting clamps.
  18.  
  19. Disconnect the gear inlet and outlet hose assemblies from the pinion housing.
  20.  
  21. Move the rack and pinion assembly forward, then remove the lower pinch bolt from the flange on the coupling assembly.
  22.  
  23. Disconnect the coupling from the steering rack.
  24.  
  25. Remove the dash seal from the rack and pinion.
  26.  
  27. Remove the rack and pinion assembly through the left wheel opening.
  28.  



Click image to see an enlarged view

Fig. Fig. 2: Power steering rack and pinion assembly-1995-98 vehicles shown

To install:
  1. If the studs were removed with the mounting clamps, reinstall the studs into the cowl. If the stud is being reused, use Loctite to secure the threads.
  2.  
  3. Slide the rack and pinion assembly through the left side wheel housing opening and secure the dash seal.
  4.  
  5. Move the assembly forward and install the coupling.
  6.  
  7. Install the lower pinch bolt and tighten to 30 ft. lbs. (41 Nm).
  8.  
  9. Connect the gear inlet and outlet hose assemblies to pinion housing and tighten 20 ft. lbs. (27 Nm).
  10.  
  11. Install the rack clamp nuts. Tighten the left side clamp first, then tighten the right side to 22 ft. lbs. (30 Nm).
  12.  
  13. Raise and safely support the vehicle.
  14.  
  15. Connect the tie rod ends to the steering knuckle and install a new cotter pin. Install the wheels.
  16.  
  17. Install the line retainer and lower the vehicle.
  18.  
  19. Install the upper pinch bolt on the coupling assembly. Tighten to 29 ft. lbs. (40 Nm).
  20.  
  21. Install the sound insulator.
  22.  
  23. Fill the power steering pump with fluid and bleed the system.
  24.  
  25. Connect the negative battery cable and check the rack for proper operation and leaks.
  26.  
  27. Check and adjust front end alignment, as required.
  28.  

 
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