GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Mechanical - 6.0L 🢒 Engine Block Valley Cover Replacement

Removal Procedure

    Object Number: 1403316 Size: SH
  1. Remove the intake manifold. Refer to Intake Manifold Replacement .
  2. Remove the valley cover bolts (506).
  3. Remove the valley cover (555) and gasket (556).
  4. Remove the O-ring seals (537) from the cover.

    5. Object Number: 1403317 Size: SH
  5. Remove the oil pressure sensor (706) and washer (707), as required.

Installation Procedure

    Object Number: 1403316 Size: SH

    Important: All gasket surfaces should be free of oil or other foreign material during assembly.

  1. Lubricate the O-ring seals with clean engine oil.
  2. Install the O-ring seals (537) to the cover (555).

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

  3. Install the cover (555), gasket (556), and bolts (506).

    4. Tighten
    Tighten the manifold bolts to 25 N·m (18 lb ft).


    Object Number: 1403317 Size: SH
  4. Apply sealant to the threads of the sensor. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  5. Install the oil pressure sensor (706) and sealing washer (707).

    6. Tighten
    Tighten the sensor to 35 N·m (26 lb ft).

  6. Install the intake manifold. Refer to Intake Manifold Replacement .