Hard To Fill With Fuel: Notes
The components that are used for tank venting, and will be diagnosed in this procedure are basically the same for every non PHEV vehicle. The only differences are the locations of the components within the system on each vehicle. The graphic below is intended for reference and depicts the general configuration of the system components for the L-Body vehicles with gas engines.
| CALL-OUT | DESCRIPTION |
|---|---|
| 1 | Evaporative System Integrity Monitor (ESIM) |
| 2 | Fresh Air Filter |
| 3 | Charcoal Canister |
| 4 | Canister Tube |
| 5 | Multifunctional Control Valve (MFCV) |
| 6 | Recirculation (Recirc) Tube |
| 7 | Inlet Check Valve (ICV) |
| 8 | Fuel Filler Tube/Hose |
| 9 | Fuel Tank Pressure Sensor |
| 10 | Grade Vent Valve (GVV) |
| 11 | Secondary Delivery Pump/Level Sensor Module |
| 12 | Grade Vent Valve (GVV) |
| 13 | Fuel Delivery Pump/Level Sensor Module |