Cylinder Head Replacement - Left Side

Cylinder Head Replacement - Left Side

Removal Procedure

1. Remove the left bank secondary timing chain. Refer to Secondary Camshaft Intermediate Drive Chain Replacement - Left Side (Secondary Camshaft Intermediate Drive Chain Replacement - Left Side).
2. Remove the oil level indicator. Refer to Oil Level Indicator Tube Replacement (Service and Repair).
3. Remove the fuel pump. Refer to Fuel Pump Replacement (Fuel Pump Replacement).
4. Remove the fuel injection fuel rail crossover tube. Refer to Fuel Injection Fuel Rail Crossover Tube Replacement (Fuel Injection Fuel Rail Crossover Tube Replacement).
5. Disconnect the injector harnesses.




6. Remove the heat shield from the coolant temperature sensor and disconnect the coolant temperature sensor electrical connector.




7. Remove the wiring harness grounds from the cylinder head.
8. Disconnect the wiring harness electrical connector located at the side of the cylinder head.
9. Remove the wiring harness connector bracket from the side of the cylinder head.

Note: DO NOT disconnect the power steering pipes and/or hoses.

10. Remove the power steering pump bolts. Refer to Power Steering Pump Replacement (V6) (Power Steering Pump Replacement)Power Steering Pump Replacement (V8) (Power Steering Pump Replacement).
11. Remove the catalytic converter. Refer to Catalytic Converter Replacement - Left Side (LLT) (Catalytic Converter Replacement - Left Side)Catalytic Converter Replacement - Left Side (L99/LS3) (Catalytic Converter Replacement - Left Side).
12. Remove the oil level indicator. Refer to Oil Level Indicator Tube Replacement (Service and Repair).

Note: Do not remove the oil filter adapter.

13. Remove the oil filter adapter upper bolt.




14. Remove the cylinder head (1) with the exhaust manifold. Refer to Cylinder Head Removal - Right Side (LLT) (43. Cylinder Head Removal - Right Side).




15. Remove and discard the cylinder head gasket.
16. Clean and inspect the cylinder head and the engine block sealing surfaces. Refer to Cylinder Head Cleaning and Inspection (58. Cylinder Head Cleaning and Inspection) and Engine Block Cleaning and Inspection (50. Engine Block Cleaning and Inspection).
17. If necessary, perform the following steps:

1. Remove the exhaust manifold from the cylinder head. Refer to Exhaust Manifold Removal - Left Side (3. Exhaust Manifold Removal - Left Side).
2. Disassemble the cylinder head. Refer to Cylinder Head Disassemble (LLT ) (57. Cylinder Head Disassemble).

Installation Procedure

1. If necessary, perform the following steps:

1. Assemble the cylinder head. Refer to Cylinder Head Assemble (LLT or LCS) (62. Cylinder Head Assemble).
2. Install the exhaust manifold to the cylinder head. Refer to Exhaust Manifold Installation - Left Side (133. Exhaust Manifold Installation - Left Side).




2. Install a NEW cylinder head gasket.




3. Carefully install the cylinder head (1) with the exhaust manifold to the engine. Refer to Cylinder Head Installation - Left Side (LLT) (101. Cylinder Head Installation - Left Side).
4. Install the oil filter adapter upper bolt. Refer to Oil Filter Adapter Installation (132. Oil Filter Adapter Installation).
5. Install the oil level indicator. Refer to Oil Level Indicator Tube Replacement (Service and Repair).
6. Install the catalytic converter to the exhaust manifold. Refer to Catalytic Converter Replacement - Left Side (LLT) (Catalytic Converter Replacement - Left Side)Catalytic Converter Replacement - Left Side (L99/LS3) (Catalytic Converter Replacement - Left Side).
7. Install the power steering pump bolts. Refer to Power Steering Pump Replacement (V6) (Power Steering Pump Replacement)Power Steering Pump Replacement (V8) (Power Steering Pump Replacement).
8. Install the wiring harness connector bracket from the side of the cylinder head.
9. Disconnect the wiring harness electrical connector located at the side of the cylinder head.





Caution: Refer to Fastener Caution (Fastener Caution).

10. Install the wiring harness ground to the cylinder head and tighten the bolt to 10 Nm (89 lb in).




11. Install the coolant temperature sensor electrical connector heat shield.
12. Connect the injector harnesses.
13. Install the fuel injection fuel rail crossover tube. Refer to Fuel Injection Fuel Rail Crossover Tube Replacement (Fuel Injection Fuel Rail Crossover Tube Replacement).
14. Install the fuel pump. Refer to Fuel Pump Replacement (Fuel Pump Replacement).
15. Install the oil level indicator. Refer to Oil Level Indicator Tube Replacement (Service and Repair).
16. Install the left bank secondary timing chain. Refer to Secondary Camshaft Intermediate Drive Chain Replacement - Left Side (Secondary Camshaft Intermediate Drive Chain Replacement - Left Side).