Silverado 2500 2WD V8-6.0L VIN U (2004)
5. Install the EVAP purge solenoid (3), isolator (1), and bolt (2) to the intake manifold.
^
Tighten the bolt to 10 Nm (89 inch lbs.).
6. Install the EVAP purge solenoid vent tube to the solenoid (1) and vapor pipe (2).