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

LD9 Without EGR
Object Number: 409332 Size: SF
(1)Throttle Body
(2)MAP Sensor
(3)To Intake Manifold
(4)To EVAP Canister (at the rear of vehicle)
(5)To Intake Pre-Plenum
(6)Oil Separator Mounted (on engine block)
(7)To Engine Timing Chain Housing
(8)EVAP Canister Purge Solenoid Valve
(9)Fuel Pressure Regulator
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