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Dodge Durango
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Emission Control Systems » Evaporative emission controls » Description and operation
Evaporation (evap) canister

DESCRIPTION

A maintenance free, EVAP canister is used on all vehicles. The EVAP canister is located under the vehicle, inside the left frame rail, in front of the fuel tank (Fig. 2).

Fig. 2 EVAP Canister Location Fig. 2 EVAP Canister Location

1 - LEFT FRAME RAIL

2 - RUBBER GROMMETS (2)

3 - LOCATING PINS (2)

4 - EVAP CANISTER

5 - MOUNTING NUT

6 - MOUNTING BRACKET

OPERATION

The EVAP canister is filled with granules of an activated carbon mixture. Fuel vapors entering the EVAP canister are absorbed by the charcoal granules.

Fuel tank pressure vents into the EVAP canister.

Fuel vapors are temporarily held in the canister until they can be drawn into the intake manifold. The duty cycle EVAP canister purge solenoid allows the EVAP canister to be purged at predetermined times and at certain engine operating conditions.

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    Dodge Durango Service Manual / Emission Control Systems / Evaporative emission controls / Description and operation / Evaporation (evap) canister

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