Hi! I have just bought a Jaguar XF 3.0 diesel a few days ago!
I have not had much chance to take it for long drives!
Yesterday I was on the motorway going constant 60mph
I then wanted to accelerate and pass a lorry! From 60 mph to 70 I can hear a rumble like a motorbike engine!
The car sounds like a v8 when I accelerate from 60 to 65-70 and then it goes away!
I tried accelerating harder, then tried going easy from 60 to 70 but the sound is there no matter what!
I can accelerate as hard as i want from a stop and I don't get that rumble or at any other speed..
please help as I know nothing about Jaguars...
