GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996

Power Rack and Pinion Steering Gear

Print

REMOVAL & INSTALLATION



Except 3.4L Engines

See Figure 1



Click image to see an enlarged view

Fig. Fig. 1: Rack and pinion steering gear assembly

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and safely support the vehicle with jackstands. Remove the front wheel and tire assemblies.
  4.  


CAUTION
Failure to disconnect the intermediate shaft from the rack and pinion stub shaft may result in damage to the steering gear. This damage may cause a loss of steering control and may cause personal injury.

  1. Remove the intermediate shaft lower pinch bolt at the steering gear (end of the steering column shaft).
  2.  


WARNING
Set the steering shaft so the block tooth on the upper steering shaft is at the 12 o'clock position, wheels on the vehicle are straight ahead and set the ignition switch to the LOCK position. Failure to follow these procedures could result in damage to the coil assembly.

  1. Remove the intermediate shaft from the stub shaft.
  2.  


WARNING
Use only the recommended tools for separating the tie rod ends from the knuckle/strut assembly. Failure to use the recommended tools may cause damage to the tie rod and seal.

  1. Remove both tie rod ends from the knuckle using a tie rod puller tool J-35917 or equivalent.
  2.  
  3. Support the vehicle body with jackstands so that the frame assembly can be lowered.
  4.  


WARNING
Do NOT lower the frame too far; engine components near the firewall may be damaged.

  1. Remove the rear frame bolts and lower the rear of the frame up to 5 in. (128mm).
  2.  
  3. Remove the heat shield, pipe retaining clip and the fluid pipes from the rack assembly. Use flare nut wrenches to remove the fluid pipes.
  4.  
  5. Remove the rack mounting bolts, nuts and rack assembly. Remove the rack assembly out through the left wheel opening.
  6.  

To install:
  1. Install the rack assembly through the left wheel opening.
  2.  
  3. Install the mounting bolts and nuts. Tighten the bolts to 59 ft. lbs. (80 Nm).
  4.  
  5. Install the fluid pipes with new O-rings using flare nut wrenches. Tighten the fittings to 20 ft. lbs. (27 Nm).
  6.  
  7. Install the pipe retaining clips and heat shield. Tighten the heat shield screws to 54 inch lbs. (6 Nm).
  8.  
  9. Raise the frame and install the rear bolts. Tighten the rear bolts to 103 ft. lbs. (140 Nm).
  10.  
  11. Install the tie rod ends and retaining nut. Tighten the nuts to 40 ft. lbs. (54 Nm). Install a new cotter pin.
  12.  


WARNING
When installing the steering column to the intermediate shaft, make sure that the shaft is seated before pinch bolt installation. If the bolt is inserted into the coupling before shaft installation, the two mating shafts may disengage. Set the steering shaft so the block tooth on the upper steering shaft is at the 12 o'clock position, wheels on the vehicle are straight ahead and set the ignition switch to the LOCK position. Failure to follow these procedures could result in damage to the coil assembly.

  1. Install the intermediate shaft-to-stub shaft. Tighten the lower pinch bolt to 40 ft. lbs. (54 Nm).
  2.  
  3. Install the front wheel and tire assemblies, then carefully lower the vehicle.
  4.  
  5. Fill the power steering pump with GM steering fluid or its equivalent.
  6.  
  7. Bleed the power steering system as outlined later in this section.
  8.  
  9. Connect the negative battery cable.
  10.  
  11. Inspect the system for leaks.
  12.  
  13. Have a qualified alignment technician adjust the front toe angle.
  14.  

3.4L Engines
  1. Remove the air cleaner and duct assembly.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Install tools J 28467-A, J 28467-90 and J 36462, or equivalent engine support fixtures.
  6.  
  7. Raise and safely support the vehicle.
  8.  
  9. Remove the left wheel and tire assembly.
  10.  
  11. Loosen the right side engine splash shield.
  12.  
  13. Remove both tie rod ends from the knuckle using a tie rod puller tool J-35917 or equivalent.
  14.  


CAUTION
Failure to disconnect the intermediate shaft from the rack and pinion stub shaft may result in damage to the steering gear. This damage may cause a loss of steering control and may cause personal injury.

  1. Remove the intermediate shaft lower pinch bolt at the steering gear (end of the steering column shaft).
  2.  


WARNING
Set the steering shaft so the block tooth on the upper steering shaft is at the 12 o'clock position, wheels on the vehicle are straight ahead and set the ignition switch to the LOCK position. Failure to follow these procedures could result in damage to the coil assembly.

  1. Detach the electrical connection from the steering gear pressure switch.
  2.  
  3. Remove the exhaust pipe and catalytic converter assembly.
  4.  
  5. Using jackstands, securely support the frame. Unfasten the frame retaining bolts, then carefully lower the frame 3 in. (76mm).
  6.  
  7. Unfasten the steering gear heat shield screws, then remove the heat shield.
  8.  
  9. Remove the power steering line clamp from the steering gear.
  10.  
  11. Unfasten the steering gear bolts.
  12.  
  13. Disconnect and plug the pressure and return lines from the steering gear.
  14.  
  15. Remove the steering gear through the left wheel opening.
  16.  
  17. Replace the stud shaft shields.
  18.  

To install:
  1. Install the rack assembly through the left wheel opening.
  2.  
  3. Unplug and connect the pressure and return lines to the steering gear.
  4.  
  5. Install the steering gear bolts and tighten to 59 ft. lbs. (80 Nm).
  6.  
  7. Fasten the power steering line clamp at the steering gear.
  8.  
  9. Install the steering gear heat shield and secure with the retaining screws. Tighten the screws to 54 inch lbs. (6 Nm).
  10.  
  11. Raise the frame assembly and align the steering gear stub shaft to the intermediate steering shaft.
  12.  
  13. Install the frame retaining bolts and tighten to 125 ft. lbs. (170 Nm). Remove the jackstands supporting the frame.
  14.  
  15. Install the exhaust pipe and catalytic converter assembly.
  16.  
  17. Attach the electrical connection to the steering gear pressure switch.
  18.  


WARNING
When installing the steering column to the intermediate shaft, make sure that the shaft is seated before pinch bolt installation. If the bolt is inserted into the coupling before shaft installation, the two mating shafts may disengage. Set the steering shaft so the block tooth on the upper steering shaft is at the 12 o'clock position, wheels on the vehicle are straight ahead and set the ignition switch to the LOCK position. Failure to follow these procedures could result in damage to the coil assembly.

  1. Install the intermediate steering shaft pinch bolt at the steering gear. Tighten the bolt to 35 ft. lbs. (47 Nm).
  2.  
  3. Install the both tie rod ends, as outlined earlier in this section.
  4.  
  5. Tighten the right side engine splash shield.
  6.  
  7. Install the left tire and wheel assembly.
  8.  
  9. Carefully lower the vehicle.
  10.  
  11. Remove the engine support fixtures. Connect the negative battery cable, then install the air cleaner and duct assembly.
  12.  
  13. Bleed the power steering system, as outlined later in this section.
  14.  

ADJUSTMENT



See Figure 2



Click image to see an enlarged view

Fig. Fig. 2: Rack bearing preload adjustment

Make the adjustment with the front wheels raised and centered. Make sure to check the returnability of the steering wheel to center after the adjustment.

  1. Loosen the adjuster plug locknut and turn the adjuster plug clockwise until it bottoms in the housing, then back OFF 50 to 70 degrees (about one flat).
  2.  
  3. Tighten the locknut on the adjuster plug. Hold the adjuster plug in place while tightening.
  4.  

 
label.common.footer.alt.autozoneLogo