Overheating car!?
I think the cooling fan in my car isnt working, which would make my car overheat, but how do I check the coolant fluid? I have a Daewoo Leganza and couldnt find it in the manual. Also, if it is the fan, do I have to order one from like Japan, or are there places in the US that have or make them? Would I have to order a whole new one, or would I just get the current one repaired? Is there anything I can do to prevent myself from getting an entre new fan?
2003 Toyota Prius engine overheating?
From my answer to the same question in Maintenance and Repairs: Obviously it isn't actually overheating, it is just saying that it is even when the engine is stone cold. It almost certainly has to be a defective Engine Coolant Temperature (ECT) sensor, which is mounted in the end of the cylinder head almost directly under the inverter coolant reservoir. There is a plastic support above it that can probably be removed for better access but unless you are a determined DIYer I recommend the dealer because of the difficult access. Me? I'd bite the bullet and tear into it myself. A good place to start would be disconnecting the sensor and seeing what indication you get when you start it, and then putting the plug back on to see what you get then. If they are the same indication I would get a bad feeling about the wiring. If it shows the blue thermometer with the sensor unplugged and overheat with the sensor plugged in the sensor must be bad. If it suddenly starts behaving when you reconnect it you know the connector was dirty. Now all you have to do is figure out how to get your hand in there. BTW, the inverter coolant reservoir has a direct connection to the inverter so you can't just move it out of the way. The inverter can be moved a couple inches but the cowl has to be removed first - a half hour of grunt work. Once that is done there are just four bolts holding the inverter down and you should be able to get a couple inches movement that way. One more thing.... Your 2003 should be coming up on its second coolant change. Replacing the ECT requires draining the engine coolant so if the coolant change is due, now's the time. True confessions - I never flush my Prius cooling system. The coolant has no silicates, borates, amines, or other chemicals that precipitate out so I just drain and fill with fresh Toyota LLC.
What are the reasons for engine over heating?
Engine overheating can be a dangerous phenomenon. There might be several reasons for the overheating.We shall discuss major reasons , without getting into much technicalities:-1. Engine Coolant - It is very essential in engine cooling. Low levels of coolant may lead to overheating. There is a container in cars to compensate the coolant level in radiator. You can check the level in radiator by opening the cap of radiator or this container.2. Engine oil also has essential role in keeping engine internals cool. Low level of engine oil also leads to overheating of engines. It can be checked by the engine oil level stick.3. Knocking- Engine knocking is very deteriorating for the engine. Besides damaging the parts it also leads to overheating. It can be identified easily by a characteristic noise( like hammer blow) or loss in power of engine.4. Hoses , fans and sensors- Coolant is essentially transferred in cooling jackets( passages in the crankcase for coolants to flow) after a certain temperature is reached ( temperature of engine). Flow may be restricted due to the some clogging in hoses, hence rise in temperature of engines.Faulty sensor may also lead to stop in flow of coolant .Fan is used to cool the coolant after its is taken out od cooling jacket. If fan is not working properly , then the coolant may nor be able to loose heat to atmosphere, hence the proper functioning is hindered.Note- Some cars don't have sensors for the coolant flo control, its is controlled by thermo syphoning effect .
Could a bad 02 sensor cause overheating?
Is it the original radiator? have you ever had water in it? very hard to tell when radiator cores are plugged. I would have gone through same steps you have. I would say it is time for the radiator to be replaced also.
My engine overheated how much could repairs cost?
I drive an 88 dodge aries and until recently it has ran like a dream. I had a leak from my anti-freeze plug but have been topping off my coolant regularly. The past week or so my temp. gauge has been really hot, and a few days ago my car overheated and broke down. I had it towed and now I'm trying to find out what may be wrong, and how much it might cost
What are the causes for an airplane's engine to overheat?
There are several very good answers here. I would like to present one specific case that would cause it.Say you have an experimental aircraft (a kit plane you built yourself) and you want it to go faster and use less fuel at cruising speed.You look at all the ways you can streamline the air frame and found that the last place to take care of is all this air being “wasted” on cooling the engine.It has to be collected, twisted around parts of the engine and then expelled.In an effort to minimize the amount of air used for cooling, you place an array of thermocouples around the engine and look to see what happens to the temperature in different areas while closing down air scoops, making holes in different places, closing off some holes, etc.After analyzing all the data, you feel you have finally optimized the cooling system.Then the weather gets just a little warmer than you ever thought it could. You’ve removed all those thermocouples to save weight and now you find yourself desperately looking for a place to put down because your engine decided it wasn’t going to play this game anymore.Okay, I didn’t experience this myself - I’ve just heard stories.
Can a broken radiator cap be the cause of the car overheating..?
The radiator cap has a psi rating on it. It is designed to be air tight and allow a pressure build up in the radiator. Thats why you don't remove a radiator cap when the car is hot, because the hot steam/fluid will shoot out. Kind of like opening a shooken up 2 liter bottle of soda. With that said, I'm not sure if that can actually cause the car to overheat or not, but could. Guess you won't know until you break down and spend the 7.00 to replace it. The other likely thing to cause the car to overheat is a bad thermostat. If you follow the upper radiator hose to where it goes into the engine block (at top of car) then thats where the thermostat is. The hose ends into a metal housing thats screwed on with 2 bolts onto the block. The thermostat is revealed when you take the 2 bolts off. Here is a way to test for a bad thermostat (this isn't the official way to do it, but has always worked for me). Once the car is at operating temperature, grab and slightly squeeze the upper radiator hose. It should be hot to the touch. You should not be able to squeeze/hold it for more than 2 seconds. Also while you are holding it, you should be able to hear/feel the water running through it. If the hose it not hot and is very comfortable for you to hold on to it, then that means the thermostat is stuck close and not allowing water to circulate (thus not passing through the radiator, thus not cooling). If thats the case, then replace it. It's fairly simple. Take the two bolts off and the thermostat will be able to just simply lifted out. Make sure you get a tube of ATV sealant (ask auto store clerk) to put a thin layer of sealant on the gasket before you screw the two bolts, on the housing cover, back on.
Why does my transmission overheat and not my engine?
A lot has to do with the design of the transmission. Many automatic transmissions will pump the fluid through a section of the engine cooling system ( radiator, or in some cases, they'll have small sections of the coolant lines that they flow through). The reasons it's over heating can be many, however a good way to reduce the overheating problem would be an auxiliary oil cooler. These are available at any auto parts store. They look like a small radiator and will mount to the radiator using plastic ties. They rarely come with enough hose and often the wrong size hose, so you'll have to pick up some hose with it. These are especially useful for vehicles that are used in heavy traffic with a lot of places that you keep the vehicle in drive while holding down the brake at a stop. Failure to do the servicing to the trans, such as filter replacement and fluid checks can compound and increase the overheating tendencies. I will assume that you have an automatic transmission with my answers. Manual transmissions also pump the gear oil to a degree, but rarely have any lines to the outside and even then the oil is very thick, so an external cooling system is far more difficult to put in place, especially one that wasn't considered by the manufacturer.