GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Engine 🢒 Engine Mechanical - 4.6L (LH2) 🢒 Cylinder Head Replacement - Left Side

Removal Procedure
  1. Remove the following subassemblies:
    2. • The left exhaust manifold--Refer to Exhaust Manifold Replacement - Left Side.
    • The water crossover--Refer to Water Outlet Housing Replacement.
    • The intake manifold--Refer to Intake Manifold Replacement.
    • The left secondary camshaft drive chain--Refer to Secondary Camshaft Drive Chain Replacement - Left Side.
    • The left camshafts--Refer to Camshaft Replacement - Left Side.
  2. Remove the power steering reservoir return hose retaining bolts from the cylinder head.

    3. Object Number: 522794 Size: SH
  3. Remove the left cylinder head. Make sure that no dowel guide pins are stuck in the cylinder head. Refer to Cylinder Head Removal - Left Side.
  4. Disassemble the left cylinder head. Refer to Cylinder Head Disassemble.
  5. Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection.
  6. Assemble the left cylinder head. Refer to Cylinder Head Assemble.

Installation Procedure

    Object Number: 522794 Size: SH
  1. Install the left cylinder head. Refer to Cylinder Head Installation - Left Side.

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

  2. Install the power steering reservoir and return hose retaining bolts to the cylinder head and tighten to 50 N·m (37 lb ft).
  3. Install the following subassemblies:
    4. • The left camshafts--Refer to Camshaft Replacement - Left Side.
    • The left secondary camshaft drive chain--Refer to Secondary Camshaft Drive Chain Replacement - Left Side.
    • The intake manifold--Refer to Intake Manifold Replacement.
    • The water crossover--Refer to Water Outlet Housing Replacement.
    • The left exhaust manifold--Refer to Exhaust Manifold Replacement - Left Side.