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Home >> Land Rover >> 2017 >> Discovery Sport SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Electronic Engine Controls - INGENIUM I4 2.0L Petrol -- Discovery Sport/L550) >> Electronic Engine Controls - INGENIUM I4 2.0L Petrol >> Description And Operation >> Description >> Variable Coolant Pump

Variable Coolant Pump

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.
G11718890
ITEM DESCRIPTION
1 Variable coolant pump shroud solenoid
2 Variable coolant pump shroud position sensor

The variable coolant pump is located at the front of the cylinder block.

The Powertrain Control Module (PCM) determines the required level of cooling upon the following inputs:

Cylinder head temperature

Cylinder block temperature

Ambient temperatures

Engine coolant temperature

Minimum flow map.

The calibration is able to control the variable coolant pump flow in five steps and is controlled by an open-loop map.

The control of the shroud solenoid is by a Pulse Width Modulation (PWM) signal from the PCM. The internal pressure within the pump acts against a return spring in the housing. Without a signal from the PCM the solenoid is de-energized. Therefore the shroud returns to its base position under spring force, resulting in full flow from the coolant pump.

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