GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1997 🢒 Monte Carlo 🢒 Engine 🢒 Engine Controls - 3.1L 🢒 Emission Hose Routing Diagram
Figure 1:

3100 (VIN M) Pontiac and Oldsmobile
Object Number: 15816 Size: SH
(1)To EVAP Canister (At Rear of Vehicle)
(2)EVAP Vacuum Switch
(3)EVAP Canister Purge Valve
(4)To Rocker Arm Cover
(5)Air Intake Duct
(6)Throttle Body
(7)PCV Valve
(8)Fuel Pressure Regulator
(9)To Transaxle
(10)Intake Manifold
(11)To Accessory
(12)To Vacuum Brake Booster
(13)MAP Sensor
Figure 2:

3100 (VIN M) Chevrolet and Buick
Object Number: 49847 Size: SH
(1)EVAP Service Port
(2)To EVAP Canister (At Rear of Vehicle)
(3)To Rocker Arm Cover
(4)Air Intake Duct
(5)Throttle Body
(6)PCV Valve
(7)Fuel Pressure Regulator
(8)To Transaxle
(9)Intake Manifold
(10)To Accessory
(11)To Vacuum Brake Booster
(12)MAP Sensor
(13)EVAP Canister Purge Valve