Can You Run a Car Without a Radiator Fan? Corrosion can and will prematurely aid in cooling system failure, specifically the water pump, radiator, heater core, and finally the thermostat. The secret of the thermostat lies in the small cylinder located on the engine-side of the device. Alternate temperatures are often applicated for older, pre-1995 vehicles where they can be used without causing problems; Alternate temperature are not applicated for most newer vehicles It's just that after decades without regular maintenance or a complete overhaul, the car's parts, radiator, engine block, hoses, fans, and belts have aged and may not be working as efficiently as they did when new. If you have any questions about this guide, you can comment below. the foreman just remove the thermostat and now my car is running without thermostat. Over a period of years, sediment builds up in a car's cooling system even if antifreeze containing corrosion inhibitors is left in all year round. Car engine thermostat. You'll find most car thermostats near the top and to one side of the engine—which makes your job easier—and less frequently toward the lower section of the block. And, while you may need to remove one or two accessories to gain access to the thermostat, you can replace it in your own garage in about an hour or so, using a few simple tools. At this temperature, the humidity gets packed in and condensed, which blend with the oil and results in slush. Figuring out your specific situation is how we can answer this question, for you! If it's not, you'll need to figure out why. Can you use only water without any coolant in the radiator? Save cars. How to replace a bad thermostat in your car, DIY with Scotty Kilmer. A car thermostat regulates the flow of coolant through the engine and is an incredibly important player in the operation of your vehicle’s engine. You may hear the phrase “the thermostat was stuck open or closed.” When the engine has been sitting for a while and is not warm, the thermostat will be closed. Every time temperature is abit cold the engine will just die. You can use tools to make all this a lot easier; I hope you liked this guide and your reparation went successfully. Will the car overheat, probably not but I do know a modern car will burn more fuel and not run as healthy during the longer warm up period caused by not running a thermostat. If it isn’t, it would need to be replaced. I went to change my thermostat today because my check engine code said it was not working properly. Also, overcooled engines run inefficiently. Thermostat replacement. Park your car in the shade. You can think of a car thermostat as a gate valve which allows or blocks the flow of coolant from the engine and into the radiator. Typically a car can't heat up enough and will run rich/open loop and never make it to operating temperature/closed loop. If it's broken in a way that the engine is running too hot, don't drive it. So when you are stuck in the traffic or wait for the traffic light. Most cars can operate fine without a thermostat, with no long term problems. An engine without a thermostat will flow too much coolant and can erode the radiator and heater core. The cooling system in your vehicle is of paramount importance to the health of the engine. The thermostat being faulty would cause the vehicle to start running hot. Sooo, this guy told her to take out the thermostat and supposedly the car would only operate on basic settings and the computer … >Can I drive my car if my thermostat is bad I need to take my car to get the >part and then drive about 20 miles to have my son in law put it on is that >gonna hurt the car If it's broken in a way that the engine is running too cold, you'll be fine for 20 miles. I had a radiator changed by someone else about a month ago. If you don't run it long enough for the engine to get too hot, it's not an issue. There is a clear answer for how long can a car idle, but how long should a car idle? I would put the correct thermostat in it and see if you can make it over heat. It can absolutely be started without a radiator. Thinkstock/Comstock/Getty Images. Years ago my mom had a car that would run fine when cold, but then when it warmed up it would run crazy. You can also use a digital multimeter to test the coolant for corrosion. T he increased velocity of the coolant flow can easily wear through the thin metal tubes. when I opened up the encasement there was not a thermostat in the spot where it should have been. If you'd like to try this yourself, go to a car parts store and buy one for a couple of bucks. 1. This is for people that couldn’t grasp the simpler things that I am associated with. To use your digital multimeter, start with a cool engine and open the radiator cap. How to test your car's thermostat to see if it's bad. You may love the heat of summer, but you need to help your car keep its cool when temperatures rise. A car thermostat regulates the flow of coolant through the engine and is an incredibly important player in the operation of your vehicle’s engine. It is believed that you should keep your car idling for 30 second to a minute would suffice. When it starts creeping into the danger zone, look under the hood to see if your electric fan is running. TOM: But taking out the thermostat can actually do quite a bit of damage on a modern car. However, if the thermostat gets stuck in the closed position, the coolant can’t flow through the radiator and can make your engine overheat. Let’s check if you have to wait more than 1 minute, turn off the engine. Most cars now have computers, which constantly monitor the engine temperature and adjust things accordingly. if you look at the rad and run your fingers across the bottom rad weaves they may be no longer connected. You can run without a thermostat but it's not a good idea because the thermostat controls the flow of water from the radiator to the engine. How to Burp Your Car's Cooling System: This instructable will walk you through the simple process of "burping" or getting all of the trapped air out of your cars cooling system. Based on the age of the vehicle, there are a few things you would want to check. If your car is older then the rad may be now pooched. Also, can you drive a car without a thermostat? To quickly tell if your thermostat is stuck, watch the flow of coolant through your radiator. If you rocket engineers want to respond to me please don’t because I probably won’t understand you. Replace with a 2 core Rad. Click to see full answer. For a more accurate test, measure the temperatures of the engine and the hose leading to the radiators to see if they’re similar. October 1, 2016 - In extreme cases, driving an overheated engine even a short distance can destroy the cylinder head, engine block or internal parts.. Hi, Guest ! Also consider a transmission oil cooler... Makes a better running car and your tranny and alternator will last longer. Engine Takes A Long Time To Warm Up; Engine Overheating; Popping-Boiling Noises Coming From Your Heater; Most Thermostat Problems Happen In One Of Two Ways: Stuck Open Thermostat. The thermostat is designed to allow the engine to reach ideal operating temperature as quickly as possible, so it would not be recommended to drive without it. An engine that runs too hot can damage the vehicle and threaten your safety. No, you can not remove the thermostat and continue running the engine for long periods of time without causing harm to the engine. Removing the thermostat will NOT increase cooling. But with fuel injection it should be no problem. Generally it should be ok to drive without the thermostat fitted, as it will only cause the engine to take longer to reach operating temperature. When running the car without a thermostat, it runs at 50o C temperature. Perhaps the most common example of purely mechanical thermostat technology in use today is the internal combustion engine cooling system thermostat, used to maintain the engine near its optimum operating temperature by regulating the flow of coolant to an air-cooled radiator. 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