Mondeo T reg Ghia.
Engine hunts/surgers when cruising, from about 45mph to 60 mph. Never under acceleration or decceleration, changed all filters, plugs, even filter near petrol tank, has done this since I bought the car 3 years ago. Doesn't seem to do it when engine is still cold. Hasn't got worse over time. Any advice on what might be causing this?
Frustrated.