GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 Eldorado 🢒 Engine 🢒 Engine Controls - 4.6L 🢒 Emission Hose Routing Diagram
Figure 1:

Vacuum Hose Routing
Object Number: 682199 Size: MF
(1)Positive crankcase ventilation (PCV) Valve
(2)Secondary air injection (AIR) Shutoff Valve Bank 1
(3)AIR Vacuum Solenoid Valve
(4)Fuel Pressure Regulator
(5)Evaporative emission (EVAP) Purge Pipe to EVAP Canister
(6)EVAP Canister Purge Valve
(7)Throttle Body
(8)AIR Shut-off Valve Bank 2
(9)Intake Manifold
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