what to do when car overheats

That sudden sight of the temperature gauge needle creeping into the red zone, or worse, a warning light flashing on your dashboard, can send a jolt of panic through any driver. An overheating engine is a serious issue that demands immediate attention. Knowing exactly what to do when car overheats is crucial to prevent costly damage and get you safely off the road.

Your First Steps for an Overheating Car

Stay calm and act quickly. First, turn off your air conditioner to reduce engine load. Immediately turn on your heater and blower to the highest setting. This might feel uncomfortable, but it pulls heat away from the engine and into the cabin, acting as a secondary cooling system. Your goal is to find a safe place to pull over, like a parking lot or the shoulder of the road, away from moving traffic.

What to Do When Car Overheats and You’re Safely Stopped

Once you are safely parked, shut off the engine. This is the fastest way to stop generating more heat. Do not, under any circumstances, open the radiator cap at this moment. The cooling system is under extreme pressure, and removing the cap can cause a violent eruption of scalding coolant and steam, leading to severe burns. Let the engine cool down completely for at least 30 minutes before you even think about touching the cap.

Assessing the Situation Safely

After the engine has had ample time to cool, you can check the coolant level in the overflow reservoir (the plastic tank). If it’s empty, this is likely the cause. Once the system is no longer hot and pressurized, you can slowly add a 50/50 mix of coolant and water. Never pour cold water onto a hot engine, as the rapid temperature change can crack the engine block. If you see steam, major leaks, or hear unusual noises, your car will need a professional tow.

Keeping Your Cool on the Road

An overheating car is a clear signal that something is wrong. Regular maintenance is your best defense. Make a habit of checking your coolant level regularly and have your cooling system, including the radiator, hoses, and thermostat, inspected as part of your routine service. By staying proactive, you can help ensure your journeys are smooth and worry-free.