K 2500 Truck 4WD V8-8.1L VIN G (2001)
18. Remove the injector lower O-ring seal (4) from the spray tip end of each injector (3).
19. Discard the O-ring seals.
INSTALLATION PROCEDURE
1. Lubricate the new lower injector O-ring seals (4) with clean engine oil.
2. Install the new O-ring seals (4) on the spray tip end of each injector (3).
