We have replaced the water pump all belts, and the thermostat. I am lost right now but was wondering if you guys had any more ideas. oh its a 92 f22, and there are no leaks

 

what are the circumstances of your overheating? are your fans turning on when your temperature rises? we need more info to be able to diagnose

 

I would try bleeding the cooling system and replacing the cooling fluid as needed.

 

did you check to coolant for oil? and for water in the oil?

 

sorry fans turn on, and did not notice and oil or water mixed

 

Does it take a while for the tempurature to go past normal operating temp?

If so my car is doing the same and I think it's the thermostat sensor/temperature sensor...basically telling the fans when to kick on and for how long.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by infamousCW-hatch &raquo;</TD></TR><TR><TD CLASS="quote">sorry fans turn on, and did not notice and oil or water mixed</TD></TR></TABLE>

First, you need to check if indeed coolant is pissing through the system. Do this by running the engine until operating temperature and feel both the top and bottom hoses from the rad. Are they hot?

Second, look at the speed of which you fan is turning. It is possible also that your electrical connection to the fan is shot and when it moves, electrical current is stopped and the fan shuts down.

Third, bleed the system from any air pockets. Don't forget to open the heater valve by setting the temperature on the heating control to MAX.

Now if your system is in good operating condition, then i would lastly suspect that your fan is not coming on when it should... So this would be either a fan relay, fan "thermo" switch or the wires themselves. You can test all this with a multimeter and some patience.

fs