is the coolant temperature sensor giving a correct reading to the computer? Is the fan getting power?
That is the temperature at which the cooling fans are coming on, this is common for newer cars. It is not a problem, and should not cause you concern.
It depends on the year, make and model plus the outside temperature but between 37 to 48 degrees...
If this is on a 2.7 litre engine, probably the cooling system needs to be bled. Other causes could be the thermostat, but they are very relieable. Even though the cooling system reserviour shows full, the cooling system might just need to be bled properly. Has the engine had a cooling system failure. Blown hose or leaky radiator Most common for this failure on the 2.7l engine is low coolant level. The heater core supply lines and temperature sensor sit as high as the top of the engine and when the cooling system gets low on coolant, the first thing noticed in cooler weather when you turn on the heater is no heat coming from the heater. You may also notice the temperature gauge fluctuation(moving up and down), or below normal to normal temperatures. This is all caused from low coolant level. Fill coolant tank, then properly bleed the cooling system. You can bleed the cooling system by placing a clear plastic hose on the coolant bleeder valve at the top of the engine, just left of the intake manifold. Next to it is the engine coolant temperature sensor. Place the other end of the hose in a clear container, open the valve counterclockwise and monitor the coolant flow through the tube. When the bubbles stop and coolant is clear, your system is clear of all air and full of coolant. You may need to redo this two or more times after driving a while.
Because it's leaking somewhere. Other than lines in the cooling system, head and intake manifold gaskets are a possibility.
Check to see if the electric cooling fans are coming on, and at the proper temperature. The air conditioning is adding heat to the engine, and your cooling system cannot remove the extra heat. This happens with some cars at idle, when the heat stays around the engine and the coolant is not circulating as quickly. Extra electric fans are installed to deal with this, but they have to be operating properly and you have to have the proper mix of antifreeze as well.
Low coolant level. The 2.7l v6 engine is bad about this problem, even though the coolant reserviour tank shows full. At low rpm, the coolant sensor shows low temperature and no heat coming from the heater. When you raise the rpm level, the temperature gauge will raise to operating temperature and heat comes from the heater. The coolant system has air in it and needs to be bled. To bleed the cooling system, find the coolant bleed valve located next to the coolant temperature sensor. They are in the plastic housing at the top of the engine just left of the intake manifold as you are standing in front of the car after raising the hood. Attach a clear plastic hose to the top of the coolant bleed valve. Place the other end in the coolant reserviour or some other container. Open the coolant bleed valve and monitor the air bubbles in the coolant through the plastic line until all bubbles passing through the line stop. You may be required to bleed the system several times as air is trapped in different places and moves to the top of the engine as you drive.
One way to tell if you're low on coolant on a central AC unit is to feel the air coming out of the vents. If the air is warm or room temperature, it is a sign that you are low on coolant.
It have battery
it is on the back of theengine with four wires coming out the connector is blue
It should be a bleeder screw connected to the cooling system, it might be two.If you find it,you should open one at a time.Pour coolant into the system slowly,until coolant start coming out of the bleeder screw and then close it . DO it to the second screw too.Now if you do not have the bleeder screws.Pour coolant into your system slowly and squeeze the top hose until no bubbles come out and the coolant level should go down at this time and then pour alittle more in there
If you have coolant mixed with air bubbles coming out, you may have a cracked head or a bad head gasket. Have a pressure test done on the cooling system to verify there is a problem.
The coolant temperature sensor on an 89 Taurus with a 3.8L V-6 is located directly above the thermostat, where the upper radiator hose connects to the engine. the sensor is positioned vertically and has 2 wires coming off of it.
If the cooling system has ONLY water in it, you need to add coolant in order to maintain a ceertain ratio of coolant content to water content. Water by itself is not sufficient to carry off the engine's heat. If you do have coolant in the system - then you should check the cooling fan for proper operation (i.e.: is it coming on and runnng when the cooling system is hot?) - Also check to determine if the water pump has failed. Because of the age of your vehicle (mine is a 2000) my guess is that it is going to be a failed cooling fan sensor, or a water pump failure.
Low coolant? Bad thermostat? System airbound? Water pump not circulating coolant? Temperature control cable not adjusted properly?
first check your coolant level. then check to see if you have a leak, then check to see if you cooling fans are coming on then check if your thermostat is working.
The cooling fan at the radiator is not coming on. Running the heater take heat out of the coolant as it goes through the heater.
Low coolant in coolant recovery tank or radiator or defective sensor
an expansion valve is a common device in all type of cooling appliances. It works on a very basic principal. A compressor in the device compress the coolant in the machine, then it released from there it goes to expansion valve, in expansion valve the gas expand. Know if you would be having a basic knowledge about the conservation of energy then you you'd be knowing that energy is required for doing a work. So her work is done in expanding the compressed coolant in the expansion valve. So the energy required for this is obtained from the coolant itself which is hot on coming from the pipes after cooling the object it was made for. The heat of the coolant is used as energy source and gradually the temperature of the coolant drops down and become ready for sucking more heat.
Bad thermal switch, those could be the thermal switch settings, or it could be reacting to the oil temperature, rather than the coolant temperature.
First I eye-ball the radiator and all coolant related parts then if the leak isn't obvious I pump 15 psi of air pressure into the cooling system with a cooling system pressure pump. This usually helps locate the source of the leak.
This is a indication of a blown head gasket,unless it has been over filled or overheated.If you are getting combustion in the cooling system you will see air coming up through the coolant in the reservoir,be careful it can blow hot coolant out without any warning.Most shops have a tool that will detect combustion gases in the coolant,it should be a inexpensive test.
Check coolant level Thermostat may not be opening Heater core may be plugged, restricted or air bound Does vehicle overheat? Most common for this failure on the 2.7l engine is low coolant level. The heater core supply lines and temperature sensor sit as high as the top of the engine and when the cooling system gets low on coolant, the first thing noticed in cooler weather when you turn on the heater is no heat coming from the heater. You may also notice the temperature gauge fluctuation(moving up and down), or below normal to normal temperatures. This is all caused from low coolant level. Fill coolant tank, then properly bleed the cooling system. You can bleed the cooling system by placing a clear plastic hose on the coolant bleeder valve at the top of the engine, just left of the intake manifold. Next to it is the engine coolant temperature sensor. Place the other end of the hose in a clear container, open the valve counterclockwise and monitor the coolant flow through the tube. When the bubbles stop and coolant is clear, your system is clear of all air and full of coolant. You may need to redo this two or more times after driving a while. The plastic housing at the top of the engine is prone to leaking, if it has orange or pink residue on it, it needs changed. The intake needs removed to change the wate outlet though.
start by check your coolant level. Otherwise it could be temp sensor or fan not coming on to cool car.
Look for the hose coming out of the radiator and find where it enters the engine. Up under that junction is the CTS.