GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Controls and Fuel - 7.8L (LF8) 🢒 Crankshaft Position Sensor Replacement

Removal Procedure

    Object Number: 1369907 Size: SH

    Important: For engines equipped with an automatic transmission, the sensor is located at the top rear of the engine block. For vehicles equipped with a manual transmission, the sensor (1) is located at the bottom of the engine.

  1. If required, remove the engine cover. Refer to Engine Cover Replacement.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  3. Disconnect the electrical connector from the crankshaft position (CKP) sensor (1).
  4. Loosen the CKP sensor retaining bolt.
  5. Remove the CKP sensor and clip.

Installation Procedure

    Object Number: 1369907 Size: SH
  1. Install the CKP sensor (1).

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

  2. Install the CKP sensor retaining bolt.

    3. Tighten
    Tighten the bolt to 6 N·m (53 lb in).

  3. Connect the electrical connector to the CKP sensor.
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  5. If required, install the engine cover. Refer to Engine Cover Replacement.