Sierra 1500 2WD V8-4.8L (2007)
45. Remove the fuel rail bolts.
Important: Lift evenly on both sides of the fuel rail until all injectors are removed from their bores.
46. Remove the fuel rail.
47. Remove and discard the fuel injector lower O-ring seals.
Important: Evenly push in the RED collar in order to remove the nipple.
48. Remove the brake booster vacuum hose nipple.
Installation Procedure
