OEM 2007 Toyota Tacoma Thermostat

2007 Toyota Tacoma Thermostat Parts Q&A

• Q: How to service the thermostat on 2007 Toyota Tacoma?

  A: The first step in servicing the thermostat requires engine coolant drainage. The first step involves removing the water inlet through the process of detaching its bolt and two nuts before detaching the water inlet and extracting the gasket from the timing chain cover. Extract the thermostat by taking it away from the timing chain cover. To perform the inspection you should heat the thermostat over time while submerged in water to verify that it opens at a programmed temperature between 80 to 84 degrees Celsius (176 to 183 degrees Fahrenheit); replace the damaged thermostat. A valve lift measurement must reach 8.5 mm (0.355 inch) when the thermostat temperature reaches 95 degrees Celsius (203 degrees Fahrenheit) and this check demands that a replacement thermostat be installed when the measurement fails to meet the specified level. Thermostat replacement is necessary if the valve remains open beyond 77 degrees Celsius (171 degrees Fahrenheit). Start by laying a new gasket across the thermostat and position the component with its jiggle valve oriented upward while keeping in mind that this component should face within a 10° range to either direction of the recommended setting. After placing a fresh gasket you must install the water inlet with the bolt and two nuts according to a torque setting of 20 Nm (204 kgf-cm, 15 ft. lbs.). Engine coolant addition is followed by leak inspection during the final stage of the installation process.