Yukon XL 2500 2WD V8-8.1L VIN G (2004)
7. Using J5892-D compress the valve spring.
8. Install the valve stem keys as follows:
8.1.
Apply a small amount of clean grease to hold the valve stem keys in place.
8.2.
Carefully release the J5892-D. Make sure the valve stem keys do not move.
8.3.
Remove the J5892-D from the valve assembly.
8.4.
Remove the compressed air from the cylinder being worked on.
9. Install the spark plug. Refer to Spark Plug Replacement in Computer and Controls - 8.1L.
10. Install the valve rocker arms and pushrods.
