Mondeo Sam

I have a 1997 2.0 lt mondeo. I have noticed that when travelling slowly in traffic with the A/C off, the temperature goes quite high to around the "A" in the "Normal" part of the guage. I think the low speed fan doesnt come on until the "A" is reached. It doesnt go into the red area but iI think its too close for comfort. However when the A/C is on,the guage doesnt go past the "R" which is about half way on the guage. This doesnt make sense to me. What is it supposed to be? I have had the radiator checked as well as the thermostat, temp sensor on the thermostat housing and coolant changed, but still the same. I think the problem is with the low speed fan not coming on when it should. Mechanics and auto elecs are scratching their heads. Anyone got any ideas or views as to whether there is a problem and if so, what the heck to I do?

 

Fordtech.

With the aircon on you'll always have a cooling fan running, which will keep the temp down. Is the heater working ok? It's possible the water pump is faulty, which will show as poor cab heating and also overheating on the motorway with aircon off, both due to poor circulation.

Mondeo Sam

Thanks for that. The heater works fine. When travelling on the motorway, and when in normal city traffic the temp guage goes to about half way, even if A/C is off. However, when in heavy traffic, the guage goes up to about the "A" unless the A/C is turned on.