Silverado 1500 4WD V8-6.0L Hybrid (2009)
37. Remove the throttle body bolts/nuts.
38. Remove the throttle body.
39. Remove and discard the throttle body gasket.
40. Remove the fuel rail bolts.
Note
Lift evenly on both sides of the fuel rail until all injectors are removed from their bores.
41. Remove the fuel rail.
42. Remove and discard the fuel injector lower O-ring seals.
Installation Procedure