What Are the Signs of Engine Overheating?
The most obvious sign of engine overheating is a temperature gauge that reads higher than normal or climbs into the red zone. But there are other warning signals you should also pay attention to. A sweet, syrup-like smell coming from under the hood often points to leaking coolant burning off on a hot surface. Another heart-pounding sign is steam rising from beneath the hood—a clear indication that something is seriously wrong. Some drivers report a thumping or knocking sound from the engine as temperatures rise beyond safe levels. If your Chevy's Check Engine light or a dedicated temperature warning light activates, don't ignore it. Common Causes of Engine Overheating
Understanding the causes of engine overheating can help you prevent the problem before it starts. A low coolant level is one of the most frequent culprits. Coolant absorbs heat from the engine and carries it away through the radiator, so if there isn't enough of it, temperatures can spike quickly. A failing thermostat is another common cause. The thermostat regulates the flow of coolant through the engine, and if it gets stuck closed, coolant can't circulate properly. A clogged radiator, a broken water pump, or a leaking hose can also contribute to the causes of engine overheating. In some cases, using the wrong type of coolant can reduce the system's effectiveness as well.
What to Do When Your Engine Overheats
First of all, don’t panic. If you notice the signs of engine overheating while driving, acting quickly and calmly is key. First, turn off the air conditioning and turn on the heater. It may seem counterintuitive, but running the heater draws heat away from the engine and can buy you a little extra time. Turn on your hazard lights and pull over to a safe location as soon as possible. Turn off the engine. Do not open the hood right away—let the engine cool for at least 15 to 20 minutes before approaching it. Never attempt to remove the radiator cap while the engine is still hot, as the pressurized steam and coolant can cause serious burns.
Once things have cooled down, check the coolant reservoir. If it's low and you have coolant on hand, you can add some carefully. However, if you're not sure of the cause, it's best to have the vehicle towed rather than risk further engine damage.