GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Denali 🢒 Engine 🢒 Engine Controls and Fuel - 4.3L 🢒 Camshaft Position Sensor Replacement

Removal Procedure

    Object Number: 1876999 Size: SH
  1. Disconnect the engine wiring harness electrical connector (7) from the camshaft position (CMP) sensor wiring harness jumper.
  2. Remove the water pump. Refer to Water Pump Replacement .

    3. Object Number: 1877007 Size: SH
  3. Remove the CMP sensor bolt.
  4. Remove the CMP sensor and wiring harness jumper from the engine front cover.
  5. Disconnect the CMP sensor wiring harness jumper from the CMP sensor.
  6. Remove the CMP sensor from the wiring harness jumper.

Installation Procedure

    Object Number: 1877007 Size: SH

    Important: Do not reuse the original O-ring seal.

  1. If reinstalling the old CMP sensor, install a NEW O-ring seal onto the sensor.
  2. Install the CMP sensor to the wiring harness jumper.
  3. Connect the CMP sensor wiring harness jumper to the CMP sensor.
  4. Lubricate the O-ring seal with clean engine oil.
  5. Install the CMP sensor and wiring harness jumper to the engine front cover.

    6. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the CMP sensor bolt.

    7. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1876999 Size: SH
  7. Install the water pump. Refer to Water Pump Replacement .
  8. Connect the engine wiring harness electrical connector (7) to the CMP sensor wiring harness jumper.