The radiator fans on my 2000 ford taurus is not coming on, can you tell me could that be a coolant sensor problem or do I need new fans. where is the coolant sensor located?

Check the obvious things first. Any coolant leaking? My water pump failed, and was leaking from a little hole in the pump. Check all hoses, radiator, heater etc for wear/cracks/holes. Next the thermostat, it's a cheap part that often fails. (take it out, drop it in a cup of boiling water, if it opens it is working)
Is the fan working? Should be on when the car is very hot, (example sitting at the lights with no air flow) if not I'd try disconnecting it, and run wires to the battery. If that works, you know the fan is good, and the problem is a fuse, or the temp sensor, or worse.
Always use coolant not tap water, (except in emergency) as corrosion can form and damage your engine.
If it's really hot ?? it could be a head gasket, cracked or warped head. (check for steam coming from your exhaust) and coolant loss.
Get it fixed ASAP, because thermostats, hoses, and water pumps, and fuses and fans, are much cheaper and easier to replace and repair, than your engine.
Good luck.
PS, check your oil for water (grey not black or brown), and oil in the coolant, both signs of bad head gasket, or cracked /warped head.

does putting heater on hot prduce hot air.on full with fan on does it reduce temo?is ur radiator fan coming on? hard to give one answer.as dont know if its overheating in traffic or on the move?there could be air stuck in pipes slowing water flow.or a pipe/radiator blockage so coolant doesnt get to flow around engine so it gets hot.u could check radiator by touching see if hot or cold where pipes enter(prob switch off engine first) try bleeding system squeesing pipes to push air out

With the switch on cross the 2 wires going to the coolant temperature sensor and if the fan comes on then replace the coolant tenp sensor.You check the fan relay by switching it with another with the same part on it in the fuse panel.

Do you know if the fan is working. I have a 99 Taurus same problem it was my temp sensor.

Sounds like your fan relay is gone.....Go to autozone and get a new one.

Could be low on coolant, or a sticking thermostat, radiator fan not coming on, check for voltage there, if there no voltage possible coolant temp. sensor, relay or fuse, if there is voltage there, bad elec. fan motor.

Check at the connector going to the fans for current, also connect a hot wire to the fans there to see if they are burned out.
If fans are good you may have a problem with one of the coolant temp sensors, there is one that runs the gauge, and one that signals the fans to come on


I’m happy to assist further over the phone at https://www.6ya.com/expert/gregg_78ecbb34e27be215

The most common problems are low coolant level, stuck thermostat, fans not working and plugged radiator. If your coolant level is good and the fan turns on when the engine gets hot, then change the thermostat and flush the radiator at the same time because the thermostat needs to come out to do a proper flush. Hope this helps.

one fan is tied to the a/c when engine warm and a/c on it will run and the other is tied to the temp sensor if it does not run at anytime fan sensor could be bad if does run and thermostat has not stuck half close your radiator needs roded out (Cleaned)

Ford 2000 Taurus

To solve the problem you have the things to do in this order;

) When the engine is cold top off the radiator with fluid. (When the pump was replaced the fluid should have been also)
) Make sure the radiator fluid has anti-freeze in it. This is also anti boil also !
) Add fluid to the overflow reservoir.
) Make sure the drive belt was replaced on the water pump.
) With the engine running, you can add fluid to the radiator for the first minute or so. You want to get air pockets out.
) Replace radiator cap.
) Let car warm up. When it's hot you should get the radiator fan coming on.
) When it get hotter the air-conditioning fan may come on.
) If the fan does not come on, the heat sensor is probably bad.
) If all fans come on, and it overheats, you may have a bad thermostat. Trace the upper radiator hose to where it connects to the engine. That's where it located.

Do not operate the engine when it overheats, You will damage the head gaskets and cause radiator fluid to leak into the cylinders.
If you smell radiator fluid in the exhaust fumes, it may already be leaking.