Evaporative Emission Canisters, Typical
Section 03-13: Evaporative Emissions | 1996 F-150, F-250, F-350, F-Super Duty and Bronco Workshop Manual |
Typical evaporative emissions canisters (EVAP canister) (9D653) are shown in the following illustration. The evaporative emissions canister is normally mounted in or near the engine compartment. Two basic sizes are employed: 925ml or 1400ml. The 925 and 1400 refer to volume of activated carbon contained within the evaporative emissions canister. Activated carbon is the working part of the evaporative emissions canister. It has the unique ability to absorb (store) and purge (remove) fuel vapors by passing fresh air through the carbon bed. It is able to do this over and over with almost no loss in ability to absorb and purge.
Thus, all sources of fuel vapor (fuel tank (9002) and purge control valve) are routed to the evaporative emissions canister for absorption of fuel vapor.
Evaporative Emission Canisters, Typical
| Item | Part Number | Description |
|---|---|---|
| 1 | 9A220 | Fuel Vapor Tube from Fuel Tank |
| 2 | 9G271 | From Purge Control Valve |
| 3 | 9D653 | Evaporative Emissions Canister, 1400ml (1.48 Qts.) |
| 4 | — | Fresh Air |
| 5 | 9D653 | Evaporative Emissions Canister, 925ml (0.98 Qts.) |