OEM 2002 Toyota Celica Thermostat

2002 Toyota Celica Parts Questions & Experts Answers

• Q: How to service and repair a thermostat on 2002 Toyota Celica?

  A: Engine coolant drainage should precede drive belt and generator removal in order to repair or service the thermostat. The removal process starts by taking out the water inlet from the cylinder block after loosening its 2 nuts which allows extraction of the thermostat and its gasket. Place the thermostat water-immersed while monitoring its valve temperature through steady heating until it reaches 80.0 - 84.0 degrees Celsius (176 - 183 degrees Fahrenheit); buy a new thermostat in case this check fails. The correct valve function requires 10 mm (0.39 inch) of lift at 90 degrees Celsius (194 degrees Fahrenheit) while full valve closure must happen when temperatures drop below 40 degrees Celsius (104 degrees Fahrenheit); replace the thermostat when any specifications fail verification. Install a new gasket onto the thermostat before installation with the jiggle valve positioned facing upward and creating an allowed 10-degree variance. Before continuing with the installation fit the water inlet with its two nuts fastened using 10 Nm torque (100 kgf-cm force) and finally let the generator alongside drive belt follow. The final step includes engine coolant addition before starting the engine while inspecting for any fluid leakage.