Hi,
I have a '04 Mondeo 1.8 (Duratec-HE), which has done 25k miles, if started making a ticking / tapping noise from the top of the eingine about 500 miles ago (after I filled up with petrol), this was accompanied with a hissing type noise from about 2500 rpm and which is only audible from the cabin of the car. I mentioned it to the dealer when it went in for the service 200 miles ago but they said they couldn't find anything untoward. Fuel consumption and performance are unaffected, is this likely to be anything I need to be concerned about?
Reagrds
Kipster