GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the negative battery cables.
  2. Drain the cooling system below the level of the sensor.

  3. Object Number: 26963  Size: SH
  4. Remove the electrical connector by releasing the locking tab.

  5. Object Number: 26943  Size: SH
  6. Remove the sensor.

Installation Procedure


    Object Number: 263631  Size: SH
  1. Install the sensor into the engine.
  2. Tighten
    Tighten the sensor to 25 N·m (18 lb ft).


    Object Number: 26963  Size: SH
  3. Install the electrical connector.
  4. Refill the coolant system.
  5. Install the negative battery cables.