Hi everyone, I have a mk 6 fiesta 2006 1.6 zetec s and it over heating!
I have had a look today and....
Top water hose is boiling and bottom is freezing!
Heating inside car is cold and gauge on dash reads normal but header tank is bubbling hot!
Done a sniffer test and a compression test that both come back fine!
I have taken the thermostat out and checked that it opened ok!
Do you think it's a water pump???

Cheers
Danny