Highlights
- Replacing a car thermostat is a relatively simple task that can be completed in about an hour.
- The thermostat is usually located in a housing on the engine block.
- The cost to replace a car thermostat varies depending on the make and model of your vehicle, but it typically ranges from $50 to $200.
If your car is overheating or running cold, a faulty thermostat may be the culprit. Replacing a car thermostat is a relatively simple task that can be completed in about an hour. Here’s a step-by-step guide on how to do it:
Tools and Materials
- New thermostat
- Socket wrench set
- Pliers
- Screwdriver
- Drain pan
- Coolant
- Rags
Safety First
Before you start, allow the engine to cool completely. This will prevent burns and make the job easier. Also, be sure to park the car on a level surface and engage the parking brake.
Locate the Thermostat
The thermostat is usually located in a housing on the engine block. Consult your vehicle’s service manual for the exact location.
Drain the Coolant
Place the drain pan under the radiator and open the drain plug. Allow the coolant to drain into the pan.
Remove the Thermostat Housing
Use the socket wrench to remove the bolts that hold the thermostat housing in place. Carefully lift the housing off the engine block.
Remove the Old Thermostat
Use the pliers to gently pull the old thermostat out of the housing. Be careful not to damage the gasket.
Install the New Thermostat
Place the new thermostat in the housing, making sure the gasket is properly seated. Push the thermostat into place until it snaps into position.
Reassemble the Thermostat Housing
Place the housing back on the engine block and tighten the bolts.
Refill the Coolant
Add coolant to the radiator until it reaches the “full” mark. Start the engine and let it run for a few minutes to circulate the coolant. Check the coolant level again and add more if necessary.
Test the Thermostat
Drive the car for a short distance and monitor the temperature gauge. The engine should warm up and the temperature should stabilize around the normal operating range. If the engine continues to overheat or run cold, the thermostat may not be functioning properly.
Summary
Replacing a car thermostat is a relatively simple task that can save you money and keep your engine running smoothly. By following these steps, you can easily diagnose a faulty thermostat and replace it with a new one. Remember, regular maintenance is key to keeping your car in top condition and avoiding costly repairs.
What You Need to Learn
Q: How often should I replace my car thermostat?
A: The thermostat should be replaced every 50,000 to 100,000 miles, or as recommended by your vehicle’s manufacturer.
Q: What are the symptoms of a faulty thermostat?
A: Symptoms of a faulty thermostat include overheating, running cold, poor fuel economy, and coolant leaks.
Q: Can I drive with a faulty thermostat?
A: Driving with a faulty thermostat can damage your engine. It’s best to replace it as soon as possible.
Q: How much does it cost to replace a car thermostat?
A: The cost to replace a car thermostat varies depending on the make and model of your vehicle, but it typically ranges from $50 to $200.
Q: How do I know if my thermostat is stuck open or closed?
A: If your thermostat is stuck open, the engine will run cold and never reach normal operating temperature. If it’s stuck closed, the engine will overheat.