Cooling fans run at cold start - 2004 Ford Freestar

See earlier answer

get the the thermostat checked.

check your cooling fans make sure they are working, to do this start your engine and turn on the ac the cooling fans should be running, if it does the next thing to check is the temp sensors, to do this turn off the ac, while the engine is running keep an eye on your temp gauge if the dial is going up above normal or at the point where you say the engine is running hot check if the cooling fans are running,
1) if not running, cooling fan sensor is not working, replace
2)if running, thermostat is shut, the thermostat regulates the flow of coolant in the engine it is fully open at normal operating temp and close if coolant is cold, replace
how to replace thermostat go to https://www.youtube.com/watch?v=dG5MhY8Bieo

coolant temp sensor tells the computer how hot or cold the engine is so it can regulate the idle and fuel mixture, when it fails there usually is no cooling fan and you will have trouble starting the engine and keeping it running.

Sounds like temperature sending unit and/ or fan switch/ relay.

It is possible that your cooling fan is not working. First check that the wires going to the cooling fan motor are plugged in. If you have A/C you may have two cooling fans check both. If wires are good. With the engine cold start the car. Let the car run until the engine is hot. See if the fan comes on. If the fan does not come on the motor or the relay are probably bad.

If cooling fans are running then the PCM is not powering up. Check or replace the PCM relay in the under hood fuse panel

The cooling fan is controlled by tempature relay.

Replace the tempature relay or fan relay.

you have a bad fan swtich in the block or the therostat housing its an easy fix

when you first start the vehicle the fans whill cycle automatically. when the engine reaches temp the fans should kick on if they don't it is most like that you have either a weak relay or a loose wire very seldom would it be a severe ecm malfunction. please rate this solution