TrailBlazer 4WD L6-4.2L VIN S (2002)
14. Remove the valve spring retainer and the valve
15. Use the J 38320 and remove the seals.
16. Clean and inspect the cylinder head.
Installation Procedure
Important: Lubricate the valve stems with clean engine oil before installing.
1. Use the J 33820 to install the valve seals. There is only one size seal.
