GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L 🢒 Exhaust Pressure Differential Sensor Replacement

Removal Procedure

    Object Number: 1862627 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the engine wiring harness electrical connector (1) from the exhaust differential pressure sensor.

    3. Object Number: 1862637 Size: SH
  3. Reposition the exhaust differential pressure sensor pipe assembly hose clamps (1).
  4. Remove the exhaust differential pressure sensor pipe assembly hoses from the sensor.
  5. Remove the exhaust differential pressure sensor bracket bolt (2).
  6. Remove the exhaust differential pressure sensor.

Installation Procedure

    Object Number: 1862637 Size: SH
  1. Position the exhaust differential pressure sensor to the frame.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the exhaust differential pressure sensor bracket bolt (2) and tighten to 9 N·m (80 lb in).
  3. Install the exhaust differential pressure sensor pipe assembly hoses to the sensor.
  4. Position the exhaust differential pressure sensor pipe assembly hose clamps (1).

    5. Object Number: 1862627 Size: SH
  5. Connect the engine wiring harness electrical connector (1) to the exhaust differential pressure sensor.
  6. Lower the vehicle.