If you are an owner of a 2012 Chevy Cruze, you may have heard about thermostat replacement. Replacing the thermostat in your Chevy Cruze is an important part of preventive maintenance, and it can save you from future engine problems. In this article, we will discuss the need for thermostat replacement and how it can be done in your 2012 Chevy Cruze.

What is a Thermostat and Its Function?

The thermostat is an integral part of the engine cooling system in your 2012 Chevy Cruze. It is a device that regulates the flow of coolant through the engine, which helps to control the engine temperature. The thermostat achieves this by opening or closing a valve that allows the coolant to flow through the engine.

The Need for Thermostat Replacement

If your Chevy Cruze’s thermostat is not functioning well, it can lead to severe engine problems. A defective thermostat can cause the engine to overheat, which can damage engine components such as gaskets, pistons, and cylinder heads. In addition, if the thermostat fails, it can result in a reduction in fuel efficiency and power output.

Signs of a Faulty Thermostat

If your thermostat is failing, you may notice some signs that indicate a problem. The most obvious sign is a high engine temperature indicator on your dashboard. Other indicators include insufficient heat in the cabin during cold weather, a drop in mileage, and radiator fluid that appears dirty or rusty.

How to Replace the Thermostat in Your 2012 Chevy Cruze?

Replacing the thermostat in your Chevy Cruze is not a difficult task, and with the right tools, you can do it yourself. Here are the steps you can follow:

1. Disconnect the battery terminal to avoid any electrical shock

2. Locate the thermostat housing, which is usually at the engine’s front

3. Drain the coolant from the radiator

4. Remove the thermostat housing

5. Remove the faulty thermostat and replace it with a new one

6. Re-assemble the housing and refill the radiator with fresh coolant


Replacing your 2012 Chevy Cruze thermostat is an essential part of preventive maintenance that ensures your car runs smoothly and efficiently. If you notice any signs of a faulty thermostat, don’t hesitate to replace it promptly. If you’re not confident about the process, it’s best to seek professional assistance. By maintaining your Chevy Cruze’s cooling system regularly, you’ll ensure its longevity and performance.

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