Tools Required

J 8062 Valve Spring Compressor

Important: Remove the spark plugs from the cylinder head with the components at room temperature.

Mark, organize, or sort the cylinder head components for assembly. Return the components to their original location during assembly.
Do not remove the cylinder head expansion plugs (8) (aluminum heads only) unless service is required.
Do not attempt to replace worn valve guides (7). Worn valve guides should be reamed and sleeved for proper clearance to the valve stem.
1. Remove the spark plugs from the cylinder heads.



2. Use the J 8062 in order to compress the valve spring.



3. Remove the valve stem keys (2).
4. Remove the valve spring cap (3).
5. Remove the valve spring (4).
6. Remove the valves (10 and 12).
7. Remove the valve stem oil seal (5).
8. Remove the valve spring shim (6) (4.8/5.3 liter applications only). Refer to Separating Parts .



9. Remove the cylinder head expansion plugs (1), if required (aluminum head).



10. Remove the coolant sensor from the left cylinder head (if required).



11. Remove the coolant plug from the right cylinder head (if required).