Express 3500 V8-4.8L VIN V (2005)
Loosen the spark plug 1 or 2 turns.
4. Brush or air blast away any dirt or debris from around the spark plug.
5. Remove the spark plug.
6. Install J 22794 into the spark plug hole.
7. Attach an air hose to J 22794.
8. Apply compressed air to J 22794 in order to hold the valves in place.
9. Use J 38606 in order to compress the valve spring.
10. Remove the valve stem keys (2).
11. Carefully release the valve spring tension.
12. Remove the J 38606.
13. Remove the valve spring cap (3).
14. Remove the valve spring (4).
15. Remove the valve stem oil seal and shim (1, 5).
Installation Procedure