Preventing Engine Meltdown: Why Is My Car Overheating?
Many TV shows and movies depict car troubles with smoke billowing from the hood. Though the cliche can create dramatic tension in a story, experiencing it firsthand can be quite alarming. If this happens to you, don’t panic—it likely means your vehicle is overheating. But cool heads can help keep you safe and your vehicle protected from further damage. Discover everything you need to know about why your vehicle is overheating.
Signs of an Overheating Car
The signs of overheating vehicle are often quite obvious both visually and by smell. Your car should be equipped with a high temperature alert light on your dashboard, which will either be a symbol of a thermometer with waves around it or just the words “TEMP.” If that light appears on your dashboard, that will be the most common and clear sign of your vehicle overheating. Other signs include:
- Your temperature gauge rapidly rising.
- You see smoke coming from your engine.
- You smell coolant.
- Your hood is too hot to touch.
- There’s a puddle of coolant underneath your car.
Why Is My Vehicle Overheating?
There are several reasons why your car may begin overheating. We’ll go over the top five car overheating causes.
1. Coolant Problems
The number one issue that causes an overheating car is an issue with the coolant level. Usually, low coolant level is caused by a coolant leak. In Florida, where the summer makes your car work harder to keep cool, proper coolant levels are essential to keep your vehicle cool.
Coolant typically needs to be replaced every 100,000 miles; however, if you’re not near the next 100,000-mile mark and your car is showing signs of overheating, you may have a leak. If you see fluid underneath your vehicle and it is having trouble keeping itself cool, or your vehicle is having trouble maintaining operating temperature, take it to the mechanic to get it checked for any leaks.
2. Faulty Thermostat
If your coolant levels look fine and you don’t see any signs of a leak, the next most common reason for overheating is a faulty thermostat. If your thermostat doesn’t open at the correct temperature or not at all coolant will not properly circulate.
Note: The temperature sensor is responsible for measuring the temperature, most thermostats open mechanically at one specific temperature.
3. Low Oil
Oil is a lubricant for your vehicle and allows all the engine’s parts to move smoothly with minimal friction. When you’re low on oil, there’s more friction, which can lead to overheating. If you’re low on oil and you’re noticing overheating, an oil change may be an easy fix to keep your vehicle running smoothly.
4. Radiator Issues
Your radiator is at the center of your vehicle’s cooling system, so when your radiator fails or experiences an issue, it often leads to overheating. There are several ways your radiator can fail, such as blocked pathways, or a leak in the radiator itself.
If you suspect this is the issue, you’ll want the expert eye of a mechanic to identify the exact problem with the radiator. They’ll let you know if your radiator can be repaired or if it needs to be replaced entirely.
5. Broken Water Pump
Your vehicle’s water pump circulates the coolant throughout your engine to keep it cool. When this pump fails, either due to contaminants or wear, your coolant isn’t being circulated, causing your vehicle to overheat.
What to Do When Your Car Overheats
If your vehicle is overheating, there are several steps you should take to protect yourself and the vehicle.
- If you’re driving, pull over as soon as it’s safe to do so. Continuing to drive while your vehicle is overheating can cause more significant damage. If your vehicle is overheating and you need to keep driving a bit before you can safely pull over, turn on your heat—this could help pull some of the hot air out of the engine and into your cabin.
- Once you’re parked, turn off your vehicle and get everyone out of the vehicle.
- Do not open the hood. You must wait until your vehicle has fully cooled down, and you’re able to touch the hood without feeling heat before opening it.
- Check your coolant levels and inspect for leaks as soon as your vehicle is cool enough to safely do so.
- If you can’t see an obvious issue or if you’ve spotted a leak or low coolant levels, call your mechanic to get your vehicle in for repair.
Preventing Overheating
One of the most important things you can do to prevent overheating is to stick to a regular maintenance schedule and do a coolant flush when needed. Finally, in case of emergency, having some spare antifreeze or water in your trunk may become valuable if your car begins to overheat.
Keep Your Cooling System Performing at City Auto Repair
Whether you just need to top off your coolant or get to the root of an overheating issue, City Auto Repair is your go-to mechanic in Gainesville, Florida. We’ll inspect your vehicle for any issues and provide you with a full report of our findings. Our technicians will also help you determine a good maintenance schedule, so your vehicle is inspected regularly throughout the year. Don’t let overheating stay a mystery—bring your vehicle into our shop for our complete diagnostic tests!