GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the engine cover assembly. Refer to Engine Cover Replacement.
  2. Remove the air cleaner assembly.

  3. Object Number: 2011791  Size: SH
  4. Disconnect the speed sensor connector (2).
  5. Remove the bolt and speed sensor (1).

  6. Object Number: 2011792  Size: SH
  7. Remove the O-ring from the speed sensor.

Inspection Procedure


    Object Number: 2011794  Size: SH
  1. Inspect the speed sensor.
  2. Measure the resistance according to the value(s).
  3. Standard Resistance

    • Tester Connection: 1-2
    • Condition: 20°C (68°F)
    • Specified Condition: 560 to 680 Ω
  4. If the resistance value is not as specified, replace the speed sensor.

Installation Procedure


    Object Number: 2011792  Size: SH
  1. Coat a new O-ring with ATF WS and install it to the speed sensor.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the speed sensor with the bolt and tighten to 5 N·m (44 lb in).
  4. Install the air cleaner assembly.
  5. Install the engine cover. Refer to Engine Cover Replacement.