AutoZone 1989 Chevrolet Corvette 5.7L FI 8cyl | Repair Guides | Suspension & Steering | Steering | Power Steering Pump | AutoZone.com

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    Ford Aerostar 1986-1997 Repair Guide

    Power Steering Pump

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    REMOVAL & INSTALLATION



    An identification tag is attached to the power steering pump reservoir. The top line of this tag indicates the basic model number (HBC) and the suffix. Always use these tags when requesting service parts as there may be slight differences in internal components.

    2.3L Engine

    See Figures 1, 2 and 3



    Click image to see an enlarged view

    Fig. Fig. 1: Make sure to use the proper tool to remove the power steering pump pulley, otherwise damage may occur



    Click image to see an enlarged view

    Fig. Fig. 2: A proper tool should be used also to install the pulley onto the power steering pump-the depth to which the pulley is installed is extremely important



    Click image to see an enlarged view

    Fig. Fig. 3: Exploded view of the power steering pump mounting assembly-2.3L engines

    1. Drain the power steering fluid from the pump by disconnecting the fluid return hose at the reservoir and draining the fluid into a suitable container.
    2.  
    3. Remove the pressure hose from the pump. If required, disconnect and remove the power steering pressure switch from the fitting on the gear assembly. Detach the electrical connector from the switch and unscrew the switch from the fitting.
    4.  
    5. Loosen the pivot bolt and adjusting bolt on the alternator bracket to release belt tension, then remove the drive belt from the power steering pump pulley.
    6.  
    7. Install a steering pump pulley remover tool (T69L-10300-B or equivalent) on the pulley. Hold the pump and rotate the tool nut counterclockwise to remove the pulley. Do not apply in-and-out pressure on the pump shaft or the internal thrust areas will be damaged.
    8.  
    9. Remove the bolts attaching the pump to the bracket, then remove the pump from the vehicle.
    10.  

    To install:
    1. Position the pump on the bracket, then install the bolts to 30-45 ft. lbs. (41-61 Nm).
    2.  
    3. Install a power steering pump pulley installer tool (T65P-3A733-C or equivalent), then press the pulley onto the pump shaft. The pull-off groove must face the front of the vehicle and the pulley must be pressed on the shaft until flush with a tolerance of 0.010 in. (0.25.4cm).
    4.  
    5. Position the belt on the pulley, then place a 1 in. wrench on the alternator boss and lift up on the alternator until the specified belt tension is read on a suitable belt tension gauge. Tighten the adjustment bolt to 24-40 ft. lbs. (33-54 Nm) and the pivot bolt to 45-57 ft. lbs. (61-78 Nm). For more information regarding tightening the accessory drive belts, refer to Routine Maintenance .
    6.  
    7. Install the pressure hose to the pump fitting. If removed, install the power steering pressure switch on the gear assembly and connect the wires.
    8.  
    9. Connect the return hose to the pump and tighten the clamp.
    10.  
    11. Fill the reservoir with specified power steering fluid, then start the engine and turn the steering wheel from stop to stop to remove any air from the system.
    12.  
    13. Check the system for leaks.
    14.  

    2.8L, 3.0L and 4.0L Engines

    See Figures 4 through 7



    Click image to see an enlarged view

    Fig. Fig. 4: Make sure to install the accessory drive belt on the pulleys in the correct order, otherwise a component may inadvertently be turned backwards-3.0L engines with A/C



    Click image to see an enlarged view

    Fig. Fig. 5: Accessory drive belt routing for 4.0L engines



    Click image to see an enlarged view

    Fig. Fig. 6: Exploded view of the power steering pump mounting assembly-3.0L engines



    Click image to see an enlarged view

    Fig. Fig. 7: Exploded view of the power steering pump mounting assembly-4.0L engines

    1. Drain the power steering fluid from the pump by disconnecting the fluid return hose at the reservoir and draining the fluid into a suitable container.
    2.  
    3. Remove the pressure hose from the pump fitting by unscrewing the hose swivel nut.
    4.  
    5. Remove the accessory drive belt. For more details, refer to Routine Maintenance .
    6.  
    7. Remove the oil dipstick tube.
    8.  
    9. If equipped, remove the power steering pump support.
    10.  
    11. Install a steering pump pulley remover tool (T69L-10300-B or equivalent) on the pulley. Hold the pump and rotate the tool nut counterclockwise to remove the pulley. Do not apply in-and-out pressure on the pump shaft or the internal thrust areas will be damaged.
    12.  


    WARNING
    Do not apply pressure on the power steering pump rotor shaft. Pressure will damage internal thrust areas of the power steering pump.

    1. Remove the bolts attaching the pump to the A/C compressor mounting bracket, then remove the pump.
    2.  

    To install:
    1. Position the new pump on the A/C compressor mounting bracket, then install the bolts to 35-45 ft. lbs. (47-61 Nm). Position the support on the A/C compressor mounting bracket, then install the mounting bolts to 35-45 ft. lbs. (47-61 Nm).
    2.  

    The fore/aft location of the power steering pump pulley on the steering pump rotor shaft is critical. Incorrect belt alignment may cause drive belt squeal or chirp. Make sure pull-off groove on the power steering pump pulley is facing front and flush with the end of the shaft to within 0.010 in. (0.25.4cm).

    1. Install a power steering pump pulley replacer tool (T65P-3A733-C or equivalent) and press the pulley onto the pump shaft.
    2.  
    3. Install the accessory drive belt. For more information, refer to Routine Maintenance .
    4.  
    5. Install the power steering pump support, if removed.
    6.  
    7. Install the oil dipstick tube.
    8.  
    9. Install the pressure hose tube nut and new Teflon® washer into the power steering pump valve outlet fitting, then tighten the fitting to 30-40 ft. lbs. (41-54 Nm).
    10.  
    11. Refill the power steering reservoir with the Premium Power Steering Fluid E6AZ-19582-AA or equivalent fluid meeting specification ESW-M2C33-F. Start the engine and turn the steering wheel from left to right without hitting the stops to bleed any air from the steering pump.
    12.  
    13. Check for leaks and recheck the fluid level. Add fluid if necessary to the proper level as specified in Routine Maintenance .
    14.  

    BLEEDING



    To bleed the air out of the power steering pump and system, first make sure that the power steering reservoir is adequately full. If the level is low, fill the power steering reservoir with the Premium Power Steering Fluid E6AZ-19582-AA or equivalent fluid meeting specification ESW-M2C33-F. Start the engine and turn the steering wheel from left to right without hitting the stops to bleed any air from the steering pump. Check for leaks and recheck the fluid level. Add fluid if necessary to the proper level as specified in Routine Maintenance .

     
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