Century V6-3100 3.1L VIN M SFI (1998)
Air Duct: Description and Operation
A system of ducts and outlets direct air to the passenger compartment. In cases of poor air output, defroster, heater, A/C and vent ducts should be
checked for obstructions, such as leaves, dirt, objects, etc. A/C systems also come equipped with side window defoggers. Removal and installation of all
ductwork is covered under On-Vehicle Service.