Coolant Pump - Charge Air Cooler
| ITEM | DESCRIPTION |
|---|---|
| 1 | Coolant pipe connections |
| 2 | Electrical connection |
A separate low temperature coolant circuit, equipped with an air-to-water heat exchanger, provides charge air cooling in combination with an electrical coolant pump.
The charge air cooler has a stand alone cooling system with its own radiator, pump and pipe work.
The charge air cooler has a temperature sensor which provides a signal to the powertrain control module (PCM).
The pump is controlled by a pulse width modulation (PWM) signal from the PCM.
The pump receives a supply from the engine junction box (EJB).
Hoses connect the inlet of the charge air coolant pump to the charge air cooler, and the outlet to the supercharger charge air coolers. An electrical connector provides the interface between the motor of the coolant pump - charge air cooler and the vehicle wiring.
The charge air coolant pump receives a fused power supply from a dedicated relay in the EJB. The relay is controlled by the PCM.