Air Duct: Description and Operation

A/C Ducts






The A/C distributor is fastened to the bottom of the upper instrument pad. The distributor receives air through the HVAC module and A/C valve and channels the air to the driver, center, and passenger A/C outlets. Air is also allowed to flow to the side window defroster outlets and to the floor heater outlets.

A/C Outlets
The A/C outlets are located in the Instrument Panel (I/P) and driver's door. Adjusting the air deflector control knob on the front of each outlet independently controls the air flow coming from each outlet.


Heater Outlets
There are five different heater ducts that direct air flow to the floor of the vehicle.

Driver's Front Heater Duct






The driver's front heater duct is attached on the LH side of the HVAC module and directs air flow to the front part of the driver's side floor near the driver's feet.

Driver's Rear Heater Duct






The driver's rear heater duct is attached on the LH side of the HVAC module and directs air flow to the rear part of the driver's side floor.

Passenger Front Heater Ducts






The upper passenger front heater duct is attached on the RH side of the HVAC module and the lower passenger front heater duct clips onto the upper duct. The passenger front heater ducts direct air flow to the front part of the passenger floor near the passenger's feet.


Passenger Rear Upper Heater Duct






The passenger rear upper heater duct is attached to the bottom of the HVAC module and runs down the along the side of the center stack support to the passenger rear lower heater duct.

Passenger Rear Lower Heater Duct






The passenger rear lower heater duct runs behind the carpet from the passenger rear upper heater duct along the drive-line tunnel toward the passenger seat. The passenger rear lower heater duct directs air flow along the drive-line tunnel to the side and behind the passenger seat.

Windshield Defroster Air Duct






The windshield defroster air duct is located on the top of the evaporator and heater core module and directs air flow to the base of the windshield and to the side windows.


Side Window Defogger Ducts
There is a side window defogger outlet located on each side of the windshield A pillar. Air flows from the evaporator and heater core module to the RH/LH ducts and out of the ducts to the window.