You can check your coolant level by finding the coolant reservoir in your engine bay and on it will be a marking indicating low and high.

This has a very simple symptom and that is the coolant temperature gauge going past the middle, anywhere from only slightly to too high. Starting with the first, low coolant level. Some you can solve on the spot but others will make the car undrivable. What to do if your Honda Civic is overheating?Īs there are different causes of an overheating Honda Civic, there are also different symptoms and different solutions. This is potentially the most expensive single repair when it comes to a Civic overheating as it is the most labor-intensive… and with that comes a high price tag. Radiator damageĭamage to the radiator can sometimes be done by something as small as a rock or even hitting a bird, so it might happen without you even noticing it. This is one of the more serious causes and it is a somewhat common issue as they will wear out and can be relatively expensive to replace. The radiator fan not working is another common overheating cause in Civics, although a more complicated one, since it doesn’t necessarily mean that the fan itself is faulty.

Stuck thermostatĪ stuck thermostat will cause your Civic’s engine to overheat but it can also mean it won’t be able to warm up and get the engine up to normal operating temperatures. So, those are the simpler causes, and now for the more complicated causes than can be harder to diagnose and repair. Check the oil if your Civic overheats after a long drive. As a result, the coolant finds it harder to siphon off excess heat. With too little engine oil, it continues to heat up and has no way of cooling down. If your Civic is burning through oil or leaking oil, that low level can lead to overheating. Low engine oilĪlthough this is far less common a cause of for a Honda Civic overheating, it is still possible and it’s easy to check, so it’s worth making sure that it’s not the oil level that’s causing overheating. If your Civic has been overheating then they might have turned white and crusty, which will have clogged the radiator and coolant hose. You can now check the inside of the radiator with a torch to see if the radiator fluid looks thick like muddy water, or if you get an aroma of rubber.Īnother sign will be the radiator fins. To check for this, stop the car, let it cool down until it’s cold, and then remove the radiator cap. Clogged coolant hoseĪnother reason for why your Honda Civic overheating could be a clogged coolant hose. You can buy replacement coolant on Amazon.Ĭoolant leaks will be indicated by a low coolant level but also wet spots under the car or wet coolant hoses and other parts of the engine. It needs to be regularly checked and topped up. This can be caused by a lot of different underlying issues but can also be as simple coolant loss over time, which is normal for a car. One of the most obvious Honda Civic overheating causes will be a low coolant level. I explain how far you can drive when overheating lower down the page. Honda Civic overheating: causes & problemsīefore I start, if you’re driving your Civic when it starts to overheat, pull over. All these causes and more are below, starting with the not so serious and won’t necessarily leave you stranded on the side of the road.

Overheating can occur after a long drive, while driving, or when your Civic is idling. But I don’t want to scare you too much, so let’s start with the simplest possible causes, before the more serious ones. Thankfully not all Honda Civic overheating problems are as serious as some and can be quickly fixed. So, switch your engine off, let it cool down, and read this ultimate guide to the causes of overheating in a Honda Civic. If your Honda Civic is running hot, be aware that it can cause damage and very quickly turn serious unless resolved.

Coolant temperature sensor honda civic