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Home >> Land Rover >> 2015 >> Range Rover Autobiography >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Electronic Engine Controls - TDV6 3.0L Diesel -- Range Rover/L405) >> Electronic Engine Controls - TDV6 3.0L Diesel >> Electronic Engine Controls (Description And Operation) >> Description And Operation >> Description >> Variable Coolant Pump

Variable Coolant Pump

WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: There is still a thermostat for conventional thermal transient operation.
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The variable coolant pump has a shroud mechanism which can be used to create zero flow in the engine coolant circuit to enable accelerated engine warm-up. The only control from the Powertrain Control module (PCM) is a signal when the engine is cold telling the pump to move the shroud to a 'no coolant flow' position. Once the engine is approaching running temperature, the PCM removes this signal, the shroud retracts and full coolant flow is resumed.

For additional information, refer to: ENGINE COOLING

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