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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 834 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Repair Instructions >> Output Shaft Speed Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Yukon XL, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Important:  This procedure is for 2-wheel drive (2WD) vehicles only. If the vehicle is equipped with 4-wheel drive (4WD), the output speed sensor is located on the transfer case.

  1. Raise and suitably support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  2. Disconnect the output speed sensor (2) electrical connector.
    Fig 1: Disconnecting Output Speed Sensor Electrical Connector
    G02112238Courtesy of GENERAL MOTORS CORP.
  3. Remove the output speed sensor bolt.
  4. Remove the output speed sensor (2).
  5. Inspect the output speed sensor (2) for any evidence of damage.
    Fig 2: Removing Output Speed Sensor & Bolt
    G02112239Courtesy of GENERAL MOTORS CORP.