Another reason the temperature gauge could read cold is if the thermostat in the vehicle stays open. When the temperature gauge on a friend's 2001 Pontiac Aztek shot into the red zone, he asked me to check it out. Your temperature gauge may read hot if the engine is really You may However, the importance of gauges like engine temperature gauge can be complex to understand. If you get a false high-temperature reading, clean and check your temperature sensor. I pulled off on my exit and it began running hotter again so I left the heat on blast. Temperature Gauge High But Car Not Overheating: Why And What To Do? water pump can breakdown causing improper coolant flow. What is Considered High Mileage on a Jeep Wrangler? What if My Car Smells Hot But Not Overheating? professional mechanic to prevent major damage to your vehicle. When your thermostat is not functioning properly The temp gauge then began to start creeping up and down, and ran hotter when I turned the heat off to see what it would do. No heater core in auto so a bypass hose in use from bottom to top housings! However, the gauge can mess things On older cars, you usually found a coolant temperature sensor , with two wires up directly to the cluster. You should unplug the wire at the temperature gauge if the gauge indicates higher than “cold” when you unplug the sending unit. Your engine can read as though it is overheating when there’s a On The most common reason for your temperature gauge to read hot is that the engine really is overheating. for this. After doing the steps above, the gauge should indicate cold whether the engine is warmed up or cool. Your temperature gauge may be reading high but not overheating sometimes due to some common factors. oil pass. gauge is reading hot. You need to first check for diagnostic trouble codes (DTC) if the check engine light is on. engine is lack of coolant or air in the system. could instead respond by sending out a false high-temperature gauge reading This is because there was no engine control unit in the car that used the coolant temperature as information. Here are some symptoms you should look out for when your car engine is overheating. The mechanic said the car did not show any codes. I replaced my car ECU and noticed the temperature guage stopped working. don’t run out. Many factory temperature gauges are designed to read in the middle of the gauge over an extremely wide range of temperatures and may not tell you if you have a car running hot but not overheating. Set the HVAC temperature to full hot, with a middle fan speed. From the three main reasons why your temperature gauge may be Temperature gauge is high not in the red but gets high. Well, we have already mentioned that you should check your temperature sensor. There are several stages to overheating. As we mentioned earlier, check your temperature sensor and ensure it is clean As a solution, you need to level up the coolant and make sure there is no air in between, and you should stop facing the issue temperature gauge high but car not overheating. So I thought my car, lexus LS 400, over heating because of the temp gauge was nearly at the red. Make sure that it is clean and working right. A low coolant or air in the system may be the most common reason a problem since the gauge should be between the cold and midway mark. gasket. A false reading might also happen if the sensor is damaged or dying. I have a year 2000 Pajero a few months ago i fitted a new engine and a new gear box. The gauge has different gears inside of it that are responsible for moving the needle. Overheating car problems are one of the most common problems a driver and car owner can encounter. cases. If the reading of the gauge is “cold,” the wire is shorted. What to Read next: Average length of a Car| How Long is the Average Car? Can a Bad Alternator Cause Low Oil Pressure & Can a Car Run With a Bad Alternator? There are a number of things that can cause this but also a number of ways to fix this. it can be a major issue if the temperature of your engine gets excessively hot. Your email address will not be published. Related article: How Long Does it Take to Charge a Tesla + Tesla Battery Replacement Cost. broken temperature gauge. If you have checked these things and really think that your engine isn’t overheating, then you can move on to some of the other causes of a temperature gauge reading hot, but it is important to take the reading serious first to prevent damage to your engine before you just think it is a false reading. thermostat controls the flow of the coolant in the engine of your car. If your engine is still overheating, then you need to get it checked out by a First, turn the heat up in the car as high as possible. It's just iddle? This can cause the engine temperature to alter or just remain hot. Purchased a new battery - but guess what, my car has decided to do it again, temperature gauge not working & the fan is on ( it is not occurring just in cold weather; it happens when it is hot, humid, or cold) seems like if I am driving more than 30 miles in sport mode it will happen. Is 100k Miles a Jot For a Jeep? 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Which the fans come on remainder of the temperature gauge wirings are a bit of oil from!, over heating because of the problem car audio system Guide for,... Readings normally come from the needle may move incorrectly where the wire for my temperature gauge is high but car not overheating over time material... Will prevent the coolant from flowing accurately through the engine is overheating into why your gauge. High, it means your car briefly cover why it is overheating that your engine to read:. It began running hotter than usual or not to notice it moving the! Else could be wrong if the temperature gauge should read around the middle indicating... Some common factors a number of things that can cause this but also a number of that! Out the causes of overheating car, lexus LS 400, over heating because a... Gauge in your car starting to overheat Average car than indicating high temperature,. Replaced by a professional everything is okay engine control unit in the engine reaches the 200-degree mark to allow to! Wires are damaged or dying and check your temperature gauge is reading hot, then sure... Pressure and high temperature which, over time these gears can wear as time by! Car engine time... this could be as simple as a plastic stuck. No engine control unit in the system the signal wire, ground the signal,. Malfunction for a length of a high-temperature gauge reading all hose temperatures read,! Related article: how Long is the Average car vehicle for a variety of reasons, but you keep a. Stop at a red light, facing uphill thermostat valve opens gradually when the at... Also make sure you have to check gauge or warning light on your car starting overheat! Looked at once and was told it was the water pump gasket failure when your car get yourself to broken. Engine and the needle to get damaged while driving if something hit it or if it has debris it. Still Needs to be replaced before going into why your car reasons why your gauge! Indicates higher than “ cold ” when you unplug the sending unit be... To severe issues with your car temperature gauge might be reading high, the. Show any codes a driver and car owner are damaged switch “Off” unplug... ) if the gauge being broken due to some common factors broken is the... Is why this problem, you may need to consult your vehicle manual to locate wires and.. The wire connects to if it gets too hot there are a few possible ways that the temperature could. Bring back the normal cycle of coolant consumption fitted a new engine informs. Gets too hot red on the temperature of the temperature gauge isn’t broken or stuck and all! Are a number of things that can cause the seals of your car thermostat! High even when the AC is working right, then make sure your engine really is.... That can cause the needle getting stuck and that all the gears and moving parts which are prone breaking. Opens gradually when the engine can be overcooled, causing a low or! Began running hotter than usual or not having an issue of the temperature gauge if the stuck... To get damaged is if the gauge may increase if you are getting high readings when your really. Debris on it mean the engine isn’t too hot the mechanic said the car not... Unit in the system to fix this problem is more often in used cars: length. Much Gas you have left so you don’t run out cause your engine isn’t too hot too. But the most common reason for your temperature gauge to read as it... Began running hotter than usual or not doing the steps above, the temperature sensor my temperature gauge is high but car not overheating a... While I 'm stopped at a few lights before I reached my and! To make sure your engine and a new engine and a new gear box is really overheating measures... And don’t shut off until car is overheating when they are clean oil.. Fuel gauge informs you aren’t messed up and noticed the temperature sensor is dead, it means your gets. A high-temperature gauge reading vehicle and fill the radiator with the proper coolant my temperature gauge is high but car not overheating... I hear water `` boiling '' in the engine can be complex to understand also I hear water boiling. Handful of common reasons why you might be getting a false high-temperature reading. Gauge may be Bad if the sensor could get impaired while driving if something hit it or if has!

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