> Help. The coolant overflown bottle om my T-Bird Keeps filling
> up and the car starts to run hot. I beleive that the cooling fan
> is not coming on at the proper heat range. What sensor should
> I replace. The Engine Coolant Temperature sensor or the
> Coolant temperature sending Unit. I beleive that the sending
> unit controls the temperature guage on the dash but do not
> know what signals the fan to come on. Any help would
> be apperciated.
The problem is likely not a sensor. The fan is controlled by the PCM.
Does the fan run? If not the suspects would be the fan motor or relay.
What year is the car and which engine?