Why Battery Light ON And Engine Overheating?

Why is my battery light ON and engine overheating? You would possibly ask. There are a couple of battery and engine problems that will cause a vehicle to run hot. Hot temperatures alone won’t be driving your vehicle to overheat. If your car’s cooling systems and the weak battery aren’t functioning correctly, it can cause severe damage to your engine and expensive repairs. 

What Causes Battery Light ON And Engine Overheating?

Here is a couple of engine and battery overheating causes:

1. Battery Overheating:

A working automobile battery will get warm after everyday driving, thanks to engine heat and carrying a charge load. If your battery gets extremely old, though, it’s going to indicate that your charging system has some problems. On a weak battery, the alternator could also be working harder than average to stay charged, making the battery light ON and engine overheating.

While keep charging constantly will cause the battery to heat up. A faulty alternator also can cause the battery to heat up. An alternator with a nasty transformer can cause overcharging the battery and should damage both components.

2. Coolant:

Every car features a cooling system to assist keep the temperature of the engine down. However, if your cooling system features a leak, blockage, or pump malfunction, the coolant won’t be ready to circulate correctly. Cooling system malfunctions aren’t just problematic when it’s hot out; frigid temperatures can cause coolant to freeze and stop circulation.

3. Car Thermostat:

Another possible issue might be a drag with the thermostat. A vehicle’s thermostat is liable for regulating the quantity of coolant flowing through the engine. A broken or malfunctioning one can easily cause your car to overheat.

4. Low Lubricant:

A car’s oil does quite lubricate moving parts. It also helps to get rid of excess heat from the engine. If your vehicle has low oil, it’d be causing your car to run hot.

5. Radiator Cooling Fan:

If your cooling fan isn’t turning on or running at the proper level, it can cause your car to overheat. In addition, radiator fans usually run on electric motors, so any mechanical motor problems can cause your lover not to provide enough excellent airflow.

Of course, these aren’t the only possible problems which will cause a car to overheat. It’s a simple idea to seek a reliable mechanic who can diagnose and repair your vehicle and obtain protection just in case your car overheats while you’re on the road. Also, find out how Nationwide’s 24-hour emergency roadside assistance will protect you in the event something goes wrong.

What To Do If Your Car Overheats?

If you discover yourself during a situation where your battery light ON and the engine overheating, follow these steps to make sure you and your vehicle remain safe

  • Pullover to the side of the road, park your car, and switch off the engine as soon as possible. Let your car cool for a few minutes.
  • Open the hood of your car to permit the warmth to filter out quickly.
  • Unplugging the battery terminals will give an additional benefit.
  • Once your car has cooled enough, turn the ignition to its first position but don’t start the engine if you see that the temperature gauge is within a traditional range and engine fluid levels are sufficient, attempt to start the engine.
  • If the engine makes unusual sounds or it doesn’t start in the least, it’s best to remain on the safe side and involve roadside assistance to possess your car towed. This may leave a mechanic to examine it and make the required repairs.

How To Prevent Your Car From Overheating?

Follow the methods below to get rid of engine overheating.

1. Park Your Car In Shade:

You can feel the temperature difference between the shade and, therefore, the sun, then can your car. Parking within the shade not only keeps you cool but can prolong the lifetime of your car. No shady spot? Use a sunshade to scale back heat inside the car.

2. Use Window Shades:

Keeping window shades within the car is helpful because you can’t always guarantee that you’ll find a shaded or covered area to park in. These UV heat shields will keep the inside from getting super-hot, plus it protects your interior from the damaging effects of the sun.

You would possibly even consider getting custom-made window shades designed to suit your make and model of car. These sunglasses are often more straightforward at keeping all of the rays out.

3. Open The Hood And Chill:

Settle down to a shady place to urge you and your car to urge chilled and luxuriate in the encompassing so that you’ll avoid getting panic. Remove the battery terminals so that you can get rid of the battery light ON and engine overheating.

4. Leave Car Windows Open:

Closed windows trap hot air, and therefore the glass is a conductor that helps heat the cavity. Leave your windows open slightly; thus, the air can escape and if you’ve got a sunroof, crack that open too. Confirm the opening isn’t large enough for somebody to succeed in through. If you allow your windows to break, remember to stay an eye fixed on the weather one sudden summer storm could lead to a soggy interior.

5. Notice The Temperature Gauge:

Located on the dashboard, the device features a needle that should always be pointing toward the middle. If it means toward hot, pull over, close up the engine and let the car calm down.

6. Add Engine Coolant:

This is especially important in hot months. to see the coolant level, open the hood and locate the coolant reservoir. Indicator lines on the reservoir show the coolant level. If too low, add the acceptable amount of coolant and reattach the cap.

Engine coolant is usually sold as a 50/50 mixture of water and coolant. You’ll also buy concentrated coolant and blend it yourself. Never add coolant to a hot engine. Instead, await the engine to chill before removing the cap or pouring in the coolant.

7. Flush The Radiator:

Even if you retain engine coolant at the proper levels, it’ll eventually get dirty and wish to get replaced. A radiator flush, also referred to as coolant flush, involves draining old coolant from the radiator, cleaning it with flush fluid, and adding new coolant.

Mechanics recommend a flush every 40,000 miles, but check your owner’s manual for the manufacturer’s recommendation.

8. Replace Your Car Battery:

If your automobile battery is older than three years, it’s not going to be providing the facility it once did, so your car has got to work harder and may overheat. Your mechanic can assist you in determining whether you’ll need a replacement battery. Decide when to vary your automobile battery.


I hope you solved the battery light ON and engine overheating by reading the article. Keep scanning our blog to stay updated on the car problems and their solutions. Thank you.

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