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

Power Steering Pump

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REMOVAL & INSTALLATION



2.0L Engine

See Figure 1

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Fig. Fig. 1: Power steering pump mounting-2.0L engine

  1. For safety purposes, disconnect the negative battery cable.
  2.  
  3. If equipped, detach the Variable Effort Steering (VES) electrical connector.
  4.  
  5. Remove the serpentine drive belt.
  6.  
  7. Unfasten the power steering pump-to-engine bolts.
  8.  
  9. Pull the pump forward, then disconnect the pressure tubes.
  10.  

Place a rag under the pressure tubes to contain any excess power steering fluid.

  1. Remove the pump assembly from the engine.
  2.  

To install:
  1. Position the pump, then connect the fluid lines.
  2.  
  3. Secure the pump to the engine with the retaining bolts. Tighten the bolts to 18-25 ft. lbs. (25-34 Nm).
  4.  
  5. Install the serpentine belt.
  6.  
  7. Fill the power steering pump with fluid, and bleed the system.
  8.  
  9. Adjust the drive belt tension.
  10.  
  11. If equipped attach the VES electrical connector.
  12.  
  13. Connect the negative battery cable and check the pump for proper operation and leaks.
  14.  

2.3L Engines

See Figure 2

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Fig. Fig. 2: View of the power steering pump-2.3L engine

  1. Disconnect the negative battery cable for safety purposes.
  2.  
  3. If equipped, detach the Variable Effort Steering (VES) electrical connector.
  4.  
  5. Remove the drivebelt from the power steering pump pulley.
  6.  
  7. Unfasten the rear bracket-to-pump bolts.
  8.  
  9. Disconnect the pressure and return lines from the pump.
  10.  
  11. On 2.0L engines, the pump can be removed from the engine.
  12.  
  13. On 2.3L engines, proceed as follows:
  14.  
  15. Unfasten the rear bracket-to-transaxle bolts.
  16.  
  17. Remove the front bracket-to-engine bolt.
  18.  
  19. Remove the pump and bracket as an assembly.
  20.  

To install:

If installing a new pump, transfer pulley and bracket.

  1. Install the pump to the bracket with the front bracket-to-engine bolt. Tighten to specification.
  2.  
  3. Install the rear bracket-to-transaxle bolts. Tighten to specification.
  4.  
  5. Install the drive belt onto the drive pulley.
  6.  
  7. Fasten the rear bracket-to-pump bolts.
  8.  
  9. Connect the pressure and return lines from the pump.
  10.  
  11. If equipped, engage the Variable Effort Steering (VES) electrical connector.
  12.  
  13. Connect the negative battery cable.
  14.  
  15. Fill the power steering pump with fluid and bleed the system.
  16.  
  17. Connect the negative battery cable and check the pump for proper operation and leaks.
  18.  

2.3L (1995) and 2.4L Engine

See Figure 3

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Fig. Fig. 3: Power steering pump mounting detail-2.4L engines

  1. Disconnect the negative battery cable for safety purposes.
  2.  
  3. If equipped, detach the Variable Effort Steering (VES) electrical connector.
  4.  
  5. Disconnect the pressure and return lines from the pump.
  6.  

Place a rag under the pressure tubes to contain any excess power steering fluid.

  1. Remove the two bolts that secure the pump to the cylinder head
  2.  
  3. Remove the pump from the cylinder head.
  4.  

To install:
  1. Install the pump into the cylinder head.
  2.  
  3. Install the two pump-to-cylinder head retaining bolts, and tighten them to 19 ft. lbs. (26 Nm).
  4.  
  5. Connect the pressure and return lines to the power steering pump.
  6.  
  7. Engage the Variable Effort Steering (VES) electrical connector.
  8.  
  9. Fill the power steering reservoir with the proper type of fluid.
  10.  
  11. Bleed the power steering system as necessary.
  12.  

2.5L Engine

See Figure 4

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Fig. Fig. 4: Power steering pump mounting-2.5L engine

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the drive belt.
  4.  
  5. Disconnect and plug the pressure lines from the power steering pump.
  6.  
  7. Unfasten the front adjustment bracket-to-rear adjustment bracket bolt.
  8.  
  9. Remove the front adjustment bracket-to-engine bolt and spacer.
  10.  
  11. Remove the pump with the front adjustment bracket.
  12.  
  13. If installing a new pump, transfer the pulley and front adjustment bracket to the new pump.
  14.  

To install:
  1. Install the pump with the front adjustment bracket. Tighten the bolts to specification.
  2.  
  3. Fasten the front adjustment bracket-to-engine bolt and spacer, then install the front adjustment bracket-to-rear adjustment bracket bolt. Tighten the bolts to specification.
  4.  
  5. Unplug, then connect the lines to the pump.
  6.  
  7. Install the drive belt.
  8.  
  9. Adjust the drive belt tension as necessary .
  10.  
  11. Fill the power steering pump with fluid and bleed the system.
  12.  
  13. Connect the negative battery cable and check the pump for proper operation and leaks.
  14.  

3.0, 3.1 and 3.3L Engines

See Figures 5 and 6

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Fig. Fig. 5: Power steering pump mounting detail-3.1L engine



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Fig. Fig. 6: Power steering pump mounting detail-3.3L engine

  1. Disconnect the negative battery cable.
  2.  
  3. If equipped, detach the Variable Effort Steering (VES) electrical connector.
  4.  
  5. Remove the serpentine drive belt.
  6.  
  7. Unfasten the power steering pump-to-engine bolts.
  8.  
  9. Pull the pump forward, then disconnect and plug the pressure tubes.
  10.  

Place a rag under the pressure tubes to contain any excess power steering fluid.

  1. On 3.0 and 3.3L engines, the pump can now be removed from the engine.
  2.  
  3. On 3.1L engines, remove the engine mount, and remove the pump.
  4.  

To remove the engine mount, support the engine with a suitable jack by the oil pan. Also, use a thin piece of wood on the jack pad to prevent oil pan damage.

To install:
  1. On 3.1L engines, position the pump and install the engine mount. Tighten the engine support-to-mount bolts to 96 ft. lbs. (130 Nm). Tighten the engine mount-to-body bolts to 49 ft. lbs. (66 Nm) and the nut to 31 ft. lbs. (31 Nm), and remove the jack from the oil pan.
  2.  
  3. On 3.0 and 3.3L engines, fasten the power steering pump to the engine. Tighten the bolts to 18-25 ft. lbs. (25-34 Nm).
  4.  
  5. Unplug and connect the pressure tubes.
  6.  
  7. Install the serpentine drive belt.
  8.  
  9. If equipped, engage the (VES) electrical connector.
  10.  
  11. Fill the power steering pump reservoir with the proper type and amount of fluid.
  12.  
  13. Connect the negative battery cable and check for leaks.
  14.  

BLEEDING



See Figure 7

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Fig. Fig. 7: Power steering system bleeding procedure

  1. Raise the vehicle so the wheels are off the ground. Turn the wheels all the way to the left. Add power steering fluid to the COLD or FULL COLD mark on the fluid level indicator.
  2.  
  3. Start the engine and check the fluid level at fast idle. Add fluid, if necessary to bring the level up to the mark.
  4.  
  5. Bleed air from the system by turning the wheels from side-to-side without hitting the stops. Keep the fluid level at the COLD or FULL COLD mark. Fluid with air in it has a tan appearance.
  6.  
  7. Return the wheels to the center position and continue running the engine for 2-3 minutes.
  8.  
  9. Lower the vehicle and road test to check steering function and recheck the fluid level with the system at its normal operating temperature. Fluid should be at the HOT mark when finished.
  10.  

See Figures 8 and 9

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Fig. Fig. 8: Torque Specifications



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Fig. Fig. 9: Torque Specifications

 
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