GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1817426  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the heater core cover. Refer to Heater Core Replacement.
  3. Disconnect the electrical connector.
  4. Remove the sensor retaining screws.
  5. Remove the sensor from the heater core pipe.

Installation Procedure


    Object Number: 1817426  Size: SH
  1. Install the sensor with the retaining screws and tighten.
  2. Connect the electrical connector.
  3. Install the heater core cover. Refer to Heater Core Replacement.
  4. Connect the negative battery cable.