GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Mechanical - 6.6L (LLY) 🢒 Engine Oil Level Sensor and/or Switch Replacement

Removal Procedure

    Object Number: 663624 Size: SH
  1. Remove the lower oil pan. Refer to Lower Oil Pan Replacement .
  2. Remove the oil level sensor clip (3).
  3. Remove the oil level sensor bolt (2) and sensor (1).

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 663624 Size: SH

    Important: When routing the oil level sensor wire, ensure that the wire is routed along the side of the oil pan.

  1. Install the oil level sensor (1) and bolt (2).

    2. Tighten
    Tighten the bolt to 9 N·m (80 lb in).

  2. Install the oil level sensor clip (3).
  3. Install the lower oil pan. Refer to Lower Oil Pan Replacement .