Thanks in advance all, I just purchased a 2014 fiesta se.
The coolant expansion tank is boiling bad even after a 10 minute drive. No coolant in the oil.
Fluid holds while stationary.
Any advice is appreciated!
A faulty cap that can’t maintain the specified pressure?
Is the pump circulating the coolant to cool the turbo? My 2015 did the same thing.
It could be the thermostat, water pump, or a temperature sensor not triggering the fan. Does the temperature light come on?
I wouldn’t drive it too far until you get these checked, as it could lead to head gasket failure or, in the worst case, a warped head due to the buildup of pressure and heat.
I just went through this. Ended up being a crack on the expantion tank where the neck starts.