K 2500 Yukon 4WD V8-6.0L VIN U (2000)
5. Remove the throttle body and gasket. Refer to Throttle Body Removal.
6. Remove the Evaporative Emissions (EVAP) purge solenoid (3), bolt (2), and isolator (1).
7. Clean the intake manifold in solvent.
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Clean the intake manifold gasket surfaces.
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Clean the intake manifold internal passages.
Caution: Wear safety glasses in order to avoid eye damage.
8. Dry the intake manifold with compressed air.
Inspection Procedure
1. Inspect the throttle body studs and stud inserts for looseness or damaged threads.
2. Inspect the wire harness stud and stud insert for looseness or damaged threads.