GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.2L 🢒 Engine Oil Pressure Sensor and/or Switch Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the engine shield. Refer to Engine Protection Shield Replacement.

    3. Object Number: 763726 Size: SH
  3. Remove the electrical connector from the oil pressure switch.
  4. Remove the oil pressure switch.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 763726 Size: SH
  1. Install the oil pressure switch and tighten to 20 N·m (15 lb ft).
  2. Install the electrical connector to the oil pressure switch.
  3. Install the engine shield. Refer to Engine Protection Shield Replacement.
  4. Lower the vehicle.