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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 975 (Steering Wheel And Steering Column) >> Repair Instructions >> Steering Wheel Position Sensor or Steering Shaft Lower Bearing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Refer to SIR Caution SIR Caution in Cautions and Notices.
  1. Disable the SIR system. Refer to SIR Disabling and Enabling Zone 3 in SIR.
    2. NOTE: The front wheels of the vehicle must be maintained in the straight ahead position and the steering column must be in the LOCK position before disconnecting the steering column or intermediate shaft. Failure to follow these procedures will cause improper alignment of some components during installation and result in damage to the SIR coil assembly.
    Fig 1: Identifying J 42640
    GM333146Courtesy of GENERAL MOTORS CORP.
  2. Lock the steering column through the access hole in the lower trim cover using J 42640  .
    3. IMPORTANT: A new sensor must come with a pin installed. If pin is not installed, return and reorder sensor. Do not apply force to the sensor and the bearing assembly in a sideways direction.
  3. Remove the steering column from the vehicle. Refer to Steering Column Replacement .
  4. Remove the sensor connector by using a suitable tool in order to pull the connector down around the right side of the steering column for accessibility.
    5. Fig 2: Removing Sensor Retainer From The Steering Shaft
    GM835293Courtesy of GENERAL MOTORS CORP.
  5. Remove the sensor retainer from the steering shaft.
    6. IMPORTANT: When reusing the sensor (1) you must install a pin into the sensor before it is removed from the steering shaft. By not installing a pin into the sensor it will cause the sensor to lose its centering position and must be discarded.
    Pin diameter must be in the range of 1-2 mm.
    Do not remove the bearing adapter (3).
    Fig 3: Removing Position Sensor By Pulling The Sensor Straight Out From The Bearing Adapter
    GM835301Courtesy of GENERAL MOTORS CORP.
  6. If reusing the sensor (1), remove the position sensor by pulling the sensor straight out from the bearing adapter (3) until the sensor is almost off the steering shaft (2). Install a pin into the sensor before removing from the steering shaft (2). Do not remove the pin until the sensor is re-installed.
  7. If replacing the sensor (1), remove the sensor by pulling the sensor straight out from the bearing adapter (3) and off the steering shaft.
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