windstar fans stuck on

[randolf]

Hopefully someone has some wisdom on this problem. On 99 windstar,when I start my , engine both radiator fans kick on low, then the high speed relay clicks and they both come on high speed. Fuses are all fine, relays have been swapped to confirm they are working. (including the two by the firewall), my temp gauge on the console works fine, goes up gradually and stays around middle.
This occurs on a cold start (by cold I mean 0-20 / -15 to 0 up here in alberta right now) so no reason for the fans to come on right away.
Im thinking the pcm is malfunctioning somehow and telling the fans to turn on even though it knows its cold.

Id love some help on this, since I'm going to have to pull the fan relays to turn the damn things off till i can figure it out. (a no-no I know )

[Teedy36]

Hi, Randolph,

I am hoping you can give me some information on a 200 Ford Windstar Van (Wheel Bearing Hub Assembly). Everyone at the Repair Shop says that the installation is easy, but no one one said anything about the third bolt at the top. it is damn impossible to get to. Would you happen to know what tool if any can remove this. I have a pully to help in pulling it off. But trying to remove that third bolt ids the reason why my wheel bearing hub assembly has not bee replaced.

[randolf]

Not sure, I haven't done any steering components on this van, haynes says to remove it and bring it to a shop because of the specialized nature of the assembly. I'm not much on going to a mechanic unless absolutely necessary, sounds like you may have one of those situations.

[KimMG]

Teedy36-

You should start your own thread. It will give you a wider audience and be less confusing. Threads are best when they are about one problem/vehicle.

randolf-

Do you have a meter and a wiring diagram? Have you checked the engine coolant sensors? Your vehicle may also have a diode in the circuit, if so, have you checked it?
There is also a Windstar sub catagory at the bottom of the Ford section. Posting there may help keep your topic from getting lost in the generic catagory.

[randolf]

Yeah, called the coolant temp sending unit on this van, all seems to be fine there, not really sure how I can check it other than checking resistance.

Which circuit are you thinking to check? As far as I understand, the whole system consists of the the temp sending unit, to the pcm, to the fan relays, to the fans.

I'm starting to think maybe someting to do with the a/c, kind of tough to explain why. When i have a/c on the a/c clutch does not kick on, unless I disconnect the a/c pressure switch.

Seems like a shot in the dark after another shot in the dark though.