Silverado 1500 2WD V8-5.3L (2007)
39. Disconnect the EVAP tube quick connect fitting at the intake manifold.
40. Disengage the retainer securing the EVAP canister purge solenoid to the fuel rail.
41. Remove the EVAP tube and purge solenoid.
42. Remove the throttle body bolts/nuts.
43. Remove the throttle body.
44. Remove and discard the throttle body gasket.
