Air Duct: Description and Operation

DUCT AND OUTLETS

Control of air through the system is regulated by vacuum. At various positions of the levers on the control head, mode doors mix and direct cooled, heated, and outside air through the air ducts.

A system of ducts and outlets directs air to the passenger compartment. In cases of poor air output, defroster, heater, AC, and vent ducts should be checked for obstructions such as leaves, dirt, or objects which may have fallen into the ducts from the passenger compartment.