Specifications
| Description | Nm |
|---|---|
| Heater hose bracket retaining bolt. | 7 |
| Evaporator core housing retaining nut. | 7 |
| Evaporator core housing retaining bolt. | 7 |
| Expansion valve manifold and tube assembly retaining bolt. | 8 |
| Auxiliary coolant flow pump retaining bolt. | 10 |
| Dual coolant flow valve retaining bolt. | 10 |
Torque Specifications
The heating and defrosting system
- controls the vehicle air temperature and, during air conditioning (A/C) operation, reduces the relative humidity of the air inside the vehicle.
- delivers heated or cooled air to maintain the vehicle interior temperature and comfort level.
- controls the brushless blower motor speed.
- allows temperature to be adjusted individually by the driver and the passenger to maintain comfort.
- uses a reheat method to provide conditioned air to the passenger compartment. All airflow from the blower motor passes through the A/C evaporator core. Temperature is regulated by reheating a portion of the air and blending it with the remaining cool air to achieve the desired temperature.
- blends the air temperature by regulating the flow of engine coolant to separate halves of the heater core. A dual coolant flow valve is used to control the flow of coolant.
The blower motor draws ambient air through the cabin air filter during all system operations except for MAX A/C cooling (when recirculated air is used) and OFF. For additional information, refer to Air Conditioning .
Scheme 63
| Item Number | Description |
|---|---|
| 1 | Heater core |
| 2 | Heater core and evaporator core housing |
| 3 | Auxiliary coolant flow pump - 4.2L only |
| 4 | Dual coolant flow valve |
| 5 | Heater hose assembly |
| 6 | Brushless blower motor |
See also:
• Jacking and Lifting