RAM 2500 Van V8-5.2L VIN Y (1998)
Evaporative Emission Control Canister: Description and Operation
EVAP Canister
DESCRIPTION
Two, maintenance free, EVAP canisters are used. The canisters are mounted to a common bracket located under the left side of vehicle behind the
drivers door well. The EVAP canisters are filled with granules of an activated carbon mixture.
OPERATION
Fuel vapors entering the EVAP canisters are absorbed by the charcoal granules. Fuel tank pressure vents into tile EVAP canisters. Fuel vapors are
temporarily held in the canisters until they can be drawn into the intake manifold. The duty cycle EVAP canister purge solenoid allows the EVAP
canisters to be purged at predetermined times and at certain engine operating conditions.
