GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Aveo 🢒 Steering 🢒 Power Steering System 🢒 Valve and Pinion Assembly Disassemble

Disassembly Procedure

    Object Number: 1248353 Size: SH

  1. Remove the rack and pinion steering assembly from the vehicle. Refer to Steering Gear Replacement .

  2. Remove the dust cover from the lower end of the housing.

    3. Notice: If the stub shaft is not securely held, damage to the pinion teeth could result.

  3. While holding the stub shaft with a wrench, remove the locknut from the pinion.

    4. Object Number: 1248355 Size: SH
  4. With the gear centered, mark the location of the stub shaft notch on the housing to aid in properly installing the pinion and valve assembly.
  5. Remove the upper housing retaining ring.

    6. Object Number: 1248358 Size: SH

    Notice: Use extreme care when installing the valve and pinion assembly from the steering gear housing, otherwise the valve and pinion assembly, bearing, steering gear housing ,or seal could be damaged.

  6. Remove the valve and pinion assembly from the stub shaft housing.

    7. Object Number: 1248356 Size: SH
  7. Remove the stub shaft dust seal, the stub shaft bearing annulus assembly.

Installation Procedure

    Caution: Refer to Safety Glasses Caution in the Preface section.


    Object Number: 1248358 Size: SH
  1. Install the bushing and a new lower pinion valve seal.
  2. Coat all the seals with power steering fluid to ensure proper sealing.

    3. Notice: Use extreme care when installing the valve and pinion assembly from the steering gear housing, otherwise the valve and pinion assembly, bearing, steering gear housing ,or seal could be damaged.

  3. When the valve and pinion assembly is fully seated in the housing, be sure the notch in the stub shaft and the mark on the housing line up. If this is not done the vehicle will not pass the straight-ahead check and will have poor steering performance.