GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Alero 🢒 Engine 🢒 Engine Controls - 3.4L 🢒 Emission Hose Routing Diagram
Figure 1:

Vacuum Hose Routing
Object Number: 682222 Size: MF
(1)Intake Manifold
(2)MAP Sensor
(3)AIR Vacuum Solenoid Valve (if equipped)
(4)AIR Control Valve (if equipped)
(5)EVAP Canister Purge Solenoid Valve
(6)Purge Pipe to EVAP Canister
(7)Throttle Body
(8)PCV Valve
(9)Fuel Pressure Regulator
(10)Air Control Valve (if equipped)
Figure 2:

EVAP System Overview
Object Number: 678941 Size: LF
(1)EVAP Canister Purge Solenoid
(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
(7)Vent Hose/Pipe
(8)EVAP Vapor Pipe
(9)EVAP Purge Pipe
(10)EVAP Service Port