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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1605 (Power Steering System) >> Repair Instructions >> Steering Gear Valve Replacement - Off Vehicle (700 Gear) >> Disassembly Procedure

Disassembly Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the thrust support assembly. Refer to Steering Gear Thrust Support Replacement - Off Vehicle (700 Gear) .
  2. Remove the stub shaft (1) and the valve assembly (2) from the steering gear housing.
  3. If necessary, remove the stub shaft (1) from the valve assembly (2) in the following manner:
    1. 3.1. Tap the stub shaft (1) lightly on a wood block in order to loosen the cap.
    2. 3.2. Pull the cap and the valve spool out from valve body (2) 6 mm (1/4 in).
    3. 3.3. Disengage the stub shaft pin (3) from the hole in the valve spool (4).
    4. Fig 1: Stub Shaft, Valve Assembly, Stub Shaft Pin & Valve Spool
    G01479625Courtesy of GENERAL MOTORS CORP.
  4. If the valve assembly needs repair, disassemble the valve in the following manner:
    1. 4.1. Simultaneously pull and rotate the valve spool (1) from the valve body (3).
    2. 4.2. Remove the valve spool O-ring seal (2).
    3. 4.3. Alternately remove the valve body teflon rings (5) and the O-ring seals (4).
Fig 2: O-Ring Seals, Rings, Valve Spool & Valve Body
G01479626Courtesy of GENERAL MOTORS CORP.
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