Cylinder Head Replacement - Left
Cylinder Head Replacement - Left Side
Tools Required
J 45059 Angle Meter
Removal Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Drain the cooling system. Refer to Draining and Filling Cooling System (LY7, LZ4, LZ9 Static Fill) Draining and Filling Cooling System (GE 47716 Fill) Draining and Filling Cooling System (LE5 Static Fill) .
3. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
4. Lower the vehicle.
5. Remove the lower intake manifold.
6. Remove the valve rocker arms and the pushrods.
7. Remove the exhaust manifold.
8. Remove the oil level indicator tube.
9. Remove the left spark plug wires from the spark plugs.
10. Remove the left spark plugs.
11. Remove the left exhaust manifold.
12. Remove the left cylinder head bolts and discard.
13. Remove the left cylinder head.
14. Remove the left cylinder head gasket.
15. Clean and inspect the cylinder head and the gasket mating surfaces. Refer to Engine Block Cleaning and Inspection and Cylinder Head Cleaning and Inspection .
Installation Procedure
1. Install a new left cylinder head gasket.
2. Install the left cylinder head over the locator pins and the gasket.
Notice: Refer to Fastener Notice .
3. Install the new cylinder head bolts.
1. Tighten the bolts in sequence to 60 N.m (44 lb ft).
2. Use the J 45059 to rotate the bolts in sequence an additional 95 degrees.
4. Install the left exhaust manifold.
5. Install the left spark plugs.
6. Install the left spark plug wires to the spark plugs.
7. Install the oil level indicator tube.
8. Install the exhaust manifold.
9. Install the valve rocker arms and pushrods.
10. Install the lower intake manifold.
11. Fill the crankcase with engine oil. Refer to Engine Oil and Oil Filter Replacement .
12. Fill the cooling system. Refer to Draining and Filling Cooling System (LY7, LZ4, LZ9 Static Fill) Draining and Filling Cooling System (GE 47716 Fill) Draining and Filling Cooling System (LE5 Static Fill) .
13. Inspect for leaks.