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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 3.6L (Ly7) (Repair Procedures -- 2 Of 5)) >> Repair Instructions (On-Vehicle Part 2 & Off-Vehicle - Part 1) >> On-Vehicle Repair Instructions - Part 2 >> Cylinder Head Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the right bank secondary timing chain. Refer to Secondary Camshaft Drive Chain Replacement - Right .
  2. Remove the coolant inlet pipe bolts and reposition the coolant inlet pipe to provide access. Refer to Coolant Pipe Replacement - Inlet (LA3, LY9) or Coolant Pipe Replacement - Inlet (LY7) in Engine Cooling.
  3. Remove the catalytic converter. Refer to Catalytic Converter Replacement - Right (LA3, LY9) or Catalytic Converter Replacement - Right (LY7) or Catalytic Converter Replacement - Right (LS6) in Engine Exhaust.
    4. Fig 1: View Of Wiring Harness Ground Bolt At Side Of Right Cylinder Head
    GM945769Courtesy of GENERAL MOTORS CORP.
  4. Remove the wiring harness ground from the side of the cylinder head.
    5. Fig 2: Locating Engine Wiring Harness Bracket Bolt & Engine Wiring Harness Bracket Stud
    GM945316Courtesy of GENERAL MOTORS CORP.
  5. Remove the wiring harness conduit upper bolt from the cylinder head and reposition the conduit to provide access.
  6. Remove the battery cable from the cylinder head. Refer to Battery Negative Cable Replacement (LHD) or Battery Negative Cable Replacement (RHD) or Battery Negative Cable Replacement (LY7) or Battery Negative Cable Replacement (LS6) in Engine Electrical.
    7. Fig 3: View Of Right Cylinder Head
    GM902818Courtesy of GENERAL MOTORS CORP.
  7. Remove the cylinder head with the exhaust manifold. Refer to Cylinder Head Removal - Right .
    8. Fig 4: View Of Right Cylinder Head Gasket
    GM902817Courtesy of GENERAL MOTORS CORP.
  8. Remove and discard the cylinder head gasket.
  9. Clean and inspect the cylinder head and the engine block sealing surfaces. Refer to Cylinder Head Cleaning and Inspection and Engine Block Cleaning and Inspection .
  10. If necessary, perform the following steps:
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