Parts for your 2008 Toyota Blade-Thermostat

2008 Toyota Blade Thermostat — What it does and when to service it

Yes, the 2008 Toyota Blade uses a conventional engine coolant thermostat. This is documented in Toyota’s E150-series Repair Manual (Auris/Blade) under the Cooling (CO) section, the Toyota Electronic Parts Catalogue for Blade models, and the engine repair manuals for the 2AZ-FE (2.4-litre) and 2GR-FE (3.5-litre) engines. Each specifies a wax‑pellet style thermostat housed at the water inlet where the lower radiator hose meets the engine.

The thermostat’s whole job is to get the Blade up to operating temperature quickly, then keep it there. Closed when the engine’s cold, it lets the motor warm up fast for better fuel economy and smoother running. Once it reaches its set point, it opens to send coolant through the radiator and hold the temperature steady. Too cold and the ECU enriches the mix, burning more fuel