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I have a 1cooling problem with my 1998 ford escort
I have a 1998 ford escort 2.0L and my coolant fan isn't kicking on, i changed the thermostat the original was broken, but the new thermostat didn't solve the problem. I am thinking it is either the Engine Coolant Temperature (ECT) sensor, or the fan itself, not sure what else could be the problem or how to find out what is the problem.
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Clear the code and drive the vehicle. If the code comes back, then you know it's real condition and not a one time event.
Changing the temperature sensor isn't going to remedy the situation. Most likely the thermostat will need to be replaced.
Often the click which can be heard when the A.C. kicks in is the clutch on the A.C. compressor. Be sure that it isn't just this sound which you are hearing. Also check the operation of the idle control valve which is supposed to raise the engine revs to compensate for heavy power drain. If this isn't working correctly, then this would explain the lights dimming under low revs.
There are probably Experts with more experience on this engine but I will try to help. You need to fix the broken wire or replace that sensor. That being said, there are some Ford engines which have 2 water sensors with one operating the coolant fan and the second for the dash gauge or trouble light. The electric coolant fan can also have 2 speeds.
For lack of water circulation, this is a water issue. The most probable cause is a stuck thermostat or air lock. I remember someone writing into Fixya about a plastic impeller falling off the water pump and it might be a good idea to check out a new water pump or pull your old water pump from the old engine and see if the impeller is plastic.
Finally, were there any issues with the replacement motor? It is possible to have bad head gaskets or clogged water passages. This would be hard to check. Having a motor of KNOWN quality can protect you from problems like this.
Try checking the fuse box under the hood. It should have a fuse marked cooling fan or cooling system. If the car does start, that means the computer isn't out, but maybe there is a bad relay by the fan or in the circuit or even the temp sensor may be bad. The fan won't run until the temp is high enough; usually by the time the thermostat opens.
The thumostat can be stuck open i would check that first.If that doesnot solve the problem.Then flush out coolant and make sure you have no air in the system good luck
Check the temperature switch, which is mounted on the rear of the cylinder head (driver side, upper engine area), and also the cooling fan control. Both of these signal when the cooling fan should come on, and it sounds like it's kicking on too late.
You will need to remove the raidator and the water pump is located directly behind the fan. Remove it and clean all the gasket off the engine. Refit the new one with the gasket and refit the radator and fan. Remember to refill the radator the coolant.
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