GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 Envoy - 4WD 🢒 Engine 🢒 Engine Controls - 4.2L 🢒 Oil Level Indicator Tube Replacement

Removal Procedure

    Object Number: 754343 Size: SH
  1. Remove the A/C line bracket nut.
  2. Remove the A/C line bracket from the oil level indicator tube stud.
  3. Disconnect the oxygen (O2) sensor electrical connector from the oil level indicator bracket.

    4. Object Number: 637658 Size: SH
  4. Remove the oil level indicator tube stud.
  5. Pull the indicator out of the tube.
  6. Pull the tube out of the block.

Installation Procedure
  1. Install the oil level indicator tube into the engine block.
  2. Add sealant to the oil level indicator tube stud threads. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

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

  3. Install the oil level indicator tube stud.

    4. Tighten
    Tighten the oil level indicator tube stud to 10 N·m (89 lb in).


    Object Number: 754343 Size: SH
  4. Install the A/C line bracket to oil level indicator tube and secure with the nut.

    5. Tighten
    Tighten the A/C line bracket nut to 7 N·m (6 lb in).

  5. Connect the O2 sensor electrical connector.
  6. Install the oil level indicator into the tube.