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 to provide fast response and control of the engine outlet temperature. The electric thermostat is located in front of the cylinder block, beside the coolant pump inlet. The electric thermostat comprises a thermostat and a resistance heated wax element in a housing. The electric thermostat is not a serviceable item and it can be replaced as an assembly.
The electric thermostat housing has 4 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. The smaller connection at the side receives coolant from the heater core and the coolant expansion tank.