Having a bit of an issue with my fiesta, it's an R reg encore 1.3 and approaching 80k.
Not really sure what it is. I thought the head gasket might be gone as I checked my coolant last week and noticed it was non existant. The car is only used for short journeys generally but I topped it up along with the oil and it hasn't seem to lost any but I put a bit of radweld in with the coolant too. and the oil when getting checked doesn't seem to have been contaminated.
I've done about 170 miles this week as I had a long motorway journey. The car drives fine on normal roads and seems to accelerate as it normally would upto around 70 mph. I used to be able to go to 85mph without a problem but now the car seems to struggle getting above the 75 mark and slows a bit more if going up a bit of a hill. When it does start getting a bit faster a noise comes from the engine. Only way I can describe it is maybe a bit like a ticking noise or like leaves rustling or something. Not the best description but its hard to tell, and it only happens once the car pushes 75+
It may very well be the headgasket on the way out I'm just not sure as other symptoms don't seem to have appeared so just wondering if it could be anything else?
The car doesn't seem to be overheating when looking at the thermostat but It does seem to be possibly burning through a bit of oil but i can't really be too sure.