What are the signs that your car is overheating?

Your car’s engine operates at high temperatures, but when it overheats, it can lead to serious mechanical failures. Recognizing the early signs of overheating and knowing how to respond can prevent costly repairs and keep you safe on the road. Here’s a guide to understanding the warning signs and what to do if your car overheats.

Signs That Your Car is Overheating

1. Temperature Gauge Rising Or Aircon Not Blowing Cold Air
   One of the most obvious signs of an overheating engine is the temperature gauge moving toward the red zone or a warning light on the dashboard. If this happens, it's crucial to take action immediately.  Most modern cars do not emit an audible warning, so it is a good habit to keep glancing on your dashboard once you feel the car getting warmer even if the aircon is on.

2. Steam Coming from the Hood
   If you notice steam (often mistaken for smoke) rising from the front of your vehicle, it indicates that the engine is extremely hot. This usually means coolant is boiling inside the radiator, and you should pull over as soon as possible.

3. Burning Smell
   An overheating engine can cause oil, rubber, or plastic components to burn, leading to an unusual odor. A sweet smell might indicate leaking coolant, while a burning rubber scent could mean belts or hoses are overheating.

4. Reduced Engine Performance
   When an engine overheats, the vehicle may lose power, hesitate, or stall. This happens because excessive heat can cause parts to expand and malfunction.

5. Coolant Leaks
   If you notice a puddle of bright green, orange, or pink liquid under your car, you may have a coolant leak. A lack of coolant can lead to overheating and severe engine damage.  Avoid using water in your radiator because water might cause rust to build up.

6. Ticking or Knocking Sounds
   Overheating causes oil to thin out, reducing its ability to lubricate engine parts. This can lead to unusual ticking or knocking noises as metal parts rub against each other.

What to Do If Your Car Overheats

1. Turn Off the AC and Turn On the Heater
   While it might seem counterintuitive, turning on the heater helps pull heat away from the engine and can provide temporary relief.

2. Pull Over Safely
   If you notice any signs of overheating, pull over to a safe location as soon as possible. Continuing to drive with an overheating engine can cause permanent damage.

3. Turn Off the Engine
   Once stopped, turn off the engine to allow it to cool down. This prevents further heat buildup and damage.

4. Do Not Open the Hood Immediately
   The engine and radiator can be extremely hot. Wait at least 15–30 minutes before opening the hood to check the coolant levels.

5. Check the Coolant Level
   If the coolant level is low, carefully add coolant or water if necessary. However, if you notice a significant leak, avoid driving the vehicle further.

6. Call for Help If Needed
   If the problem persists, call for roadside assistance or a mechanic. Driving with an overheating engine can lead to catastrophic engine failure.  If a mechanic is not available, you can get to your destination by driving while keeping the engine RPM below 1,500.  As soon as the temperature gauge starts to climb up, stop and turn off the engine then wait about half an hour.  Turn the engine on again and if the temperature has gone down to normal, drive slowly again.

By recognizing these signs early and taking immediate action, you can protect your car and avoid expensive repairs.