GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Yukon XL - 4WD 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Emission Hose Routing Diagram

Vacuum Hose Routing
Object Number: 344974 Size: SH
(1)Manifold Absolute Pressure (MAP) Sensor
(2)EVAP Canister Purge Hose
(3)EVAP Service Port
(4)Positive Crankcase Ventilation (PCV) Valve
(5)Throttle Body
(6)EVAP Canister Purge Valve
(7)AIR Module, if equipped