Concorde V6-2.7L VIN R (1998)
Radiator Cooling Fan Motor: Description and Operation
Figure 8-Fan Module
All models use electric motor driven fans. The fan modules include a motor support and shroud. The module is fastened to the radiator by screws with
square nuts and retaining clips.
The dual fan module is a combination of 2 fans mounted in a one piece shroud which operate at two speeds and are simultaneously activated. The dual
fan system improves engine cooling and air conditioning performance in hot weather and severe driving conditions, while reducing fan noise and
power consumption.
Attempts to reduce high temperature gauge reading by increasing engine speed, can increase high temperature.
FAN SHROUD
All vehicles have fan shrouds to improve fan air flow efficiency. The shroud supports the electric fan motor and fan.
Radiator Fan Operation - All Engines
Fan control is accomplished two ways. A pressure transducer on the air conditioning compressor discharge line sends a signal to the Powertrain
Control Module (PCM) which will activate both fans if necessary. In addition to this control, the fan is turned on based on coolant temperature sensor
output to the (PCM). The PCM switches the fans on through the fan relays.
Switching through the (PCM) provides film control for the following conditions.
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Regardless of coolant temperature the fan will not run during cranking until the engine starts.
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Fans will run in accordance with following operation charts.