A malfunctioning thermostat could effect expensive engine damage.
The thermostat in a Ford uses a valve entire with mercury To gauge the temperature of the coolant in the engine. As the temperature rises, the valve opens and allows extended fluid to flow wound up the engine. This keeps the Ford from overheating. If the thermostat in your Ford stays closed and causes overheating, or it stays cleared and prevents the Ford from properly heating the engine, you can troubleshoot the thermostat to fix upon whether replacement is obligatory.
Instructions
1. Remove the coolant from the petcock located on the backside of the radiator. Remove bolts that secure the T-Stat housing to the engine with a socket set, remove the housing and pull the thermostat out of the engine.2. Fill a pot with water so the thermostat rests fully submerged in the water. Custom a span of pliers to cleared the petcock provided decisive. Remove the thermostat from the engine. To effect so, go next the upper radiator hose to the point where the hose connects to the engine. Pry the hose clamp off the hose with a brace of pliers and remove the hose from the T-Stat housing.
Place the thermostat in the pot with the spring resting against the bottom of the pot.
3. Place a cooking thermometer in the pot with the thermostat.
4. Heat the water until it reaches 190-degrees Fahrenheit. The thermostat will remain closed until it reaches 190-degrees Fahrenheit. Once the temperature surpasses this, the thermostat should open up and the spring should compress. If it does not open, the thermostat is defective and needs a replacement.
5. Reattach your thermostat or install its replacement. Place a new gasket between the engine and the thermostat housing and secure everything into place with the bolts. Secure the radiator hose back to the T-Stat housing and drain the fluid back into the radiator.
