Electric Thermostat
| ITEM | DESCRIPTION |
|---|---|
| 1 | Coolant pump connection |
| 2 | Engine coolant outlet tube connection |
| 3 | Heater element electrical connector |
| 4 | Radiator lower hose connection |
| 5 | Coolant expansion tank connection |
The electric thermostat is a multi-stage device, located in front of the engine block, beside the coolant pump inlet to provide fast response and control of the engine outlet temperature. The electric thermostat comprises a thermostat and a resistance heated wax element in one housing, which is not a serviceable item and it can be replaced as an assembly.
The electric thermostat housing has four connections. The lower connection receives a quick fit connector which receives coolant from the radiator lower hose and the Automatic Transmission Fluid (ATF) cooler. The upper hose connection is connected to the engine coolant outlet tube. The flow from this connection is governed by the electric thermostat. The larger connection at the side provides coolant flow to the coolant pump and the smaller connection at the side receives coolant from the heater core and the coolant expansion tank.