GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2004
🢒
Envoy - 4WD
🢒
Engine
🢒
Engine Controls - 4.8L, 5.3L, and 6.0L
🢒 Evaporative Emissions Hose Routing Diagram
EVAP System Overview
(1)
EVAP Canister Purge Solenoid Valve
(2)
EVAP Canister
(3)
Fuel Fill Neck/Fill Cap
(4)
Rollover Valve/Fuel Tank Pressure (FTP) Sensor
(5)
Fuel Tank
(6)
EVAP Canister Vent Solenoid Valve
(7)
Vent Hose/Pipe
(8)
EVAP Vapor Pipe
(9)
EVAP Purge Pipe
(10)
EVAP Service Port