On a car, the thermostat is a small device that sends coolant into the engine to prevent it from rising too much in temperature. When cold, the thermostat is closed and does not send any coolant to the circuit until the engine has reached a certain temperature. When the latter is reached, the thermostat opens, the liquid inside the radiator fills to a certain level, and the temperature of the engine is contained within certain limits. After several years, it happens that this thermostat fails and remains in a closed position. This article, therefore, aims to help people realize when Auto Gauge Repairs in Arizona AZ are needed.
Look at the temperature gauge on the instrument panel. If the gauge goes into the red between 5 and 15 minutes after a cold start, you may suspect a failing thermostat. Stop the car and wait until the engine cools down before lifting the hood. Remove the tank cap and refill with antifreeze. Locate the heater and remove the cap. Slightly unscrew the bleed bolt located at the bottom of the radiator and pour a certain amount of liquid into a container that can be closed. Run the vehicle until the fluid level is below the return hose.
It is not necessary to purge the entire system. The amount of liquid to be removed depends on the size of the radiator. On average, it is necessary to lose 1 to 2 liters. You can return antifreeze to the system if it is new, otherwise replace it. Locate the thermostat. The housing of the thermostat is most often on the path of the inlet hose (named the so-called “return”). To remove the thermostat, people need a screwdriver and a pair of pliers. Often, the opening temperature is engraved on the body of the thermostat, and it varies according to each model. If there is nothing on the body, consult the vehicle manual about Auto Gauge Repairs in Arizona AZ.
Fill a pan with cold water and completely dip the thermostat. However, it should not touch the bottom of the pan. At the same time, monitor the temperature and the thermostat. The thermostat must remain closed until it reaches the temperature indicated on the body (or in the manual). When this is reached, you will see the thermostat open. If you do not see anything moving, it’s time to replace your thermostat with the help of Dick’s Speed-O-Tach.
