GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L (LBZ and LLY) 🢒 Crankshaft Position Sensor Replacement

Removal Procedure

    Object Number: 1335470 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement .
  4. Disconnect the crankshaft position (CKP) sensor electrical connector.

    5. Object Number: 1336119 Size: SH
  5. Remove the CKP sensor bolt .
  6. Remove the CKP sensor.
  7. If necessary, remove the CKP sensor spacer bolts.
  8. If necessary, remove the CKP sensor spacer.

Installation Procedure

    Object Number: 1336119 Size: SH
  1. If necessary, lubricate a NEW CKP spacer O-ring with clean engine oil.
  2. If necessary, install the NEW O-ring to the CKP sensor spacer.

    3. Important: The crankshaft position sensor spacers are machined with different timing positions. However, if the crankshaft position sensor spacer requires replacement, replace with a grade "C" spacer.

  3. If necessary, install the CKP sensor spacer.

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

  4. If necessary, install the CKP sensor spacer bolts.

    5. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  5. Lubricate a NEW CKP sensor O-ring with clean engine oil.
  6. Install the NEW O-ring to the CKP sensor.
  7. Install the CKP sensor.
  8. Install the CKP sensor bolt.

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


    Object Number: 1335470 Size: SH
  9. Connect the CKP sensor electrical connector.
  10. Install the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement .
  11. Lower the vehicle.
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .