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How do I know if my Chevy Cruze thermostat is bad?


The thermostat in your Chevy Cruze plays a crucial role in regulating the engine's temperature. A malfunctioning thermostat can lead to overheating or underheating, which can cause significant damage to your engine if left unchecked. In this article, we’ll explore the signs of a bad thermostat and what you can do to address the issue.


What Does the Thermostat Do?


The thermostat is a small but vital component in your car's cooling system. It controls the flow of coolant between the engine and the radiator, ensuring that the engine operates within the optimal temperature range. When the engine is cold, the thermostat remains closed to allow it to warm up quickly. Once the engine reaches the desired temperature, the thermostat opens to allow coolant to flow and prevent overheating.


Signs Your Chevy Cruze Thermostat Might Be Bad


If your thermostat is failing, you may notice one or more of the following symptoms:



  • Engine Overheating: If the thermostat is stuck closed, coolant cannot flow to the radiator, causing the engine to overheat. This is often accompanied by a high-temperature gauge reading or a warning light on your dashboard.

  • Engine Running Too Cool: A thermostat stuck open will allow coolant to flow continuously, preventing the engine from reaching its optimal operating temperature. This can lead to poor fuel efficiency and reduced performance.

  • Fluctuating Temperature Gauge: A faulty thermostat may cause erratic temperature readings on your gauge, as it struggles to regulate the engine's temperature.

  • Coolant Leaks: A bad thermostat can sometimes cause pressure buildup in the cooling system, leading to leaks around the thermostat housing or other components.

  • Heater Not Working Properly: If the engine isn’t warming up due to a stuck-open thermostat, you may notice that your car’s heater isn’t producing warm air.


How to Confirm a Bad Thermostat


If you suspect your thermostat is failing, here are a few steps you can take to confirm the issue:



  • Check the Temperature Gauge: Monitor your temperature gauge while driving. If it stays too low or spikes suddenly, the thermostat may be the culprit.

  • Inspect for Coolant Leaks: Look for signs of coolant leaks around the thermostat housing or under the car.

  • Feel the Radiator Hoses: Carefully (and only when the engine is cool), feel the upper and lower radiator hoses. If one is hot and the other is cold, the thermostat may be stuck closed.

  • Consult a Professional: If you’re unsure, it’s always a good idea to have a trusted mechanic inspect your vehicle. At Kevin’s Autos, we specialize in diagnosing and repairing cooling system issues, including thermostat problems.


What to Do If Your Thermostat Is Bad


If you’ve determined that your Chevy Cruze thermostat is bad, it’s important to replace it as soon as possible to avoid further damage to your engine. Here’s what you can do:



  • Purchase a Replacement Thermostat: Make sure to buy a thermostat that is compatible with your Chevy Cruze model and year.

  • Replace It Yourself (If Experienced): If you’re comfortable working on your car, you can replace the thermostat yourself. Be sure to follow the manufacturer’s instructions and refill the coolant properly.

  • Visit a Professional Mechanic: For most drivers, the safest and most reliable option is to have a professional handle the replacement. At Kevin’s Autos, we have years of experience in thermostat replacement and cooling system repairs, ensuring your car is back on the road quickly and safely.


Conclusion


A bad thermostat can cause serious issues for your Chevy Cruze, but recognizing the signs early can save you from costly repairs. If you’re experiencing any of the symptoms mentioned above, don’t hesitate to address the problem. At Kevin’s Autos, we’re here to help with all your car maintenance and repair needs. Contact us today to schedule an appointment and keep your car running smoothly!


Frequently Asked Questions

What are the symptoms of a bad thermostat?


What Are the Signs of a Bad or Broken Thermostat?

  • The AC or Furnace Won't Come On.
  • The HVAC System Won't Turn Off.
  • The Thermostat Is Unresponsive.
  • The HVAC System Short-Cycles.
  • The Room Temperature Doesn't Match the Thermostat Setting.
  • The Programmed Settings Reset Themselves.
  • Check and Adjust the Settings.



Can I replace my thermostat myself?


In most cases, installing a new thermostat is a relatively simple do-it-yourself project that can result in improved comfort and convenience and one that can help you save energy.



How do I know if my thermostat needs replacing?


7 Telltale Signs Your Thermostat Needs Replacing

  1. Blank or unresponsive screen.
  2. Short-cycling.
  3. Constantly running HVAC units.
  4. Inaccurate thermostat temperature readings.
  5. Hot and cold spots.
  6. High energy bills.
  7. Old and obsolete.



How do you test a car thermostat?


Place the thermostat in a pot of water on the stove. Turn on the heat and use a thermometer to monitor the water temperature. As the water heats up, observe the thermostat. It should start to open around the specified temperature (usually marked on the thermostat).



Can I drive a car with a bad thermostat?


If you drive with a bad thermostat, your car could overheat, causing severe and expensive engine damage. And while it's technically possible to drive without a thermostat, we don't recommend it. Your car will not reach an acceptable operating temperature, resulting in higher fuel consumption and excessive engine wear.



What is the best way to check a thermostat?


Get an Indoor Thermometer
Another way to test your thermostat is to use a thermometer. Place the thermometer in the room and turn on the AC. After a few minutes, check the thermometer to see what temperature it's reading. The temperature should be lower than when you started.



Can you drive a car with a faulty thermostat?


If you drive with a bad thermostat, your car could overheat, causing severe and expensive engine damage. And while it's technically possible to drive without a thermostat, we don't recommend it. Your car will not reach an acceptable operating temperature, resulting in higher fuel consumption and excessive engine wear.



How do I check my thermostat?


Methods for Testing Your Thermostat

  1. Just Turn it On and Let it Work. One way to test your thermostat is to simply turn it on and see if it cools the room down.
  2. Get an Indoor Thermometer. Another way to test your thermostat is to use a thermometer.
  3. Use a Multimeter.
  4. What to Do if You Notice an Issue.



How much does it cost to replace a thermostat in a Chevy Cruze?


The average cost for a Chevrolet Cruze Thermostat Replacement is between $419 and $442. Labor costs are estimated between $87 and $110 while parts are typically priced around $332. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.



How often do thermostats go bad in a car?


10 years
A car thermostat is designed to last a long time – typically around 100,000 miles or 10 years. However, various factors can impact its lifespan. First, driving conditions play a role. If you regularly drive in hot weather or stop-and-go traffic, your thermostat may suffer additional stress.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.