B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
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A desiccant bag is mounted inside the canister to absorb any moisture which may be in the refrigerant system.
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A fitting located on the top of the receiver/drier is used to attach the A/C cycling switch. A long-travel Schrader-type valve stem core is installed in
the fitting so that the A/C cycling switch can be removed without discharging the A/C system.