Section 39 (Heating & Air Conditioning (Service Information)): Description
The HVAC housing is mounted longitudinally in the vehicle, which means it doesn't follow the line of the bulkhead, but protrudes into the passenger compartment. The assembly is available in a single or dual zone configuration, and has a cabin compartment filter on all applications. See the Controls article of this Group for more information. Refer to CONTROLS .
All vehicles use an HVAC housing that combines heating, ventilating and A/C capabilities into a single housing. Based upon the mode selected, conditioned air can exit the HVAC housing through one, or a combination of, the panel (2), defrost (3) and floor (1 and 5) outlets. Once the conditioned air exits the HVAC housing, it is further directed through molded plastic ducts to the air outlets within the vehicle interior. See the Distribution Service Information. for more information. Refer to DISTRIBUTION
The A/C system uses a variable displacement compressor, and an A/C expansion valve (4) to meter the flow of refrigerant to the A/C evaporator. See the Plumbing Service Information. for more information. Refer to PLUMBING
To maintain the performance level of the HVAC system, the engine cooling system must be properly maintained. The use of a bug screen is not recommended. Any obstructions in front of the radiator or A/C condenser will reduce the performance of the A/C and engine cooling systems. The engine cooling system includes the radiator, thermostat, radiator hoses and the engine coolant pump. See Cooling for more information. Refer to ENGINE COOLING SYSTEM .