GM Astro/Safari 1985-1996 Repair Guide
Power Steering Pump - REMOVAL & INSTALLATION
(see
Figures 1, 2, 3, 4, 5, 6 and 7)
Fig. 1: Exploded view of the power steering pump assembly
mounting-2.5L engine
Fig. 2: Exploded view of the power steering pump assembly
mounting-early-model 4.3L engine
Fig. 3: Removing the power steering pump pulley-1985-92
vehicles
Fig. 4: Installing the power steering pump pulley
Fig. 5: Pump pulley removal and installation-1993-96 vehicles
Fig. 6: Exploded view of the power steering pump
mounting-late-model 4.3L engines (1993-96 shown)
Fig. 7: Typical power steering pump hose routing-1996 shown
The following procedure requires the use of the GM Puller tool No.
J-29785-A (1985-92), Puller J-25034-B (1993-96) or equivalent, and the
GM Pulley Installer tool No. J-25033-B or equivalent.
-
Disconnect the negative battery cable for safety.
-
For 1996 vehicles, remove the air cleaner assembly for access.
-
For 1993-96 vehicles, remove the hood latch and the upper fan
shroud.
-
Release tension and remove the drive belt.
-
Remove the power steering pump pulley using a suitable puller
tool.
-
Remove the power steering pump retaining bolts, then reposition
the pump as necessary for access to the hoses.
-
Position a fluid catch pan under the power steering pump.
-
Remove the hoses from the power steering pump and drain the excess
fluid into the catch pan.
WARNING
Be sure to cap all openings in the pump hydraulic system to
prevent excessive fluid spillage and the possibility of system
contamination.
-
Remove the power steering pump from the vehicle.
To install:
-
Position the pump to the vehicle, then uncap and connect the pump
hoses.
-
Install the steering pump to the retaining bracket, then secure
using the retaining bolts. Tighten the power steering pump-to-bracket
bolts to 37 ft. lbs. (50 Nm). For 1996 vehicles, tighten the nut to 30
ft. lbs. (41 Nm).
On early-model vehicles where the drive belt is tensioned by pivoting
the power steering pump assembly, do NOT fully tighten the mounting
bolts at this time, since you will just have to loosen them again for
belt installation and adjustment.
-
Install the pump pulley using the GM Pulley Installer tool No.
J-25033-B or equivalent. Press the drive pulley onto the power steering
pump.
-
Hand-tighten the pivot bolt, the adjusting bolt and the washer.
-
Install the drive belt. On early-model vehicles so
equipped, properly adjust the belt tension. For details on belt
installation and tension adjustment.
-
For 1993-96 vehicles install the upper fan shroud and the hood
latch assembly.
-
For 1996 vehicles, install the air cleaner assembly.
-
Connect the negative battery cable.
-
Refill the power steering reservoir and bleed the power steering
system.
-
Remove the jackstands and carefully lower the vehicle.
-
Road test the vehicle, then check and top-off the power steering
fluid.
hope this help (remember rated this post) Good luck.
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