if you still might suspect the belt and /or tensioner did the 2008 have the upgraded tensioner... I have the service records for my 2006 that I got from the previous owner and one of them reads...customer complains of a vibration in the floorboard/pedal area....they put the upgrade tensioner on and maybe an idler....it fixed the problem, so the paperwork says...I believe it because I have never had the issue....just my own experience
Junior Member
Quote:
good afternoon did you manage to solve the vibration problem on the 1200 rpm?Originally Posted by daro31
I have a vibration in my accelerator pedal on the 2008 Stype 4.2 it is very noticeable as a high frequency vibration in the pedal when feathering the accelerator at 30-40 mph. The way you drive in city traffic. It is not there on acceleration and not their on the highway on cruise control. Hard to describe but it is there. I have done the transmission oil change. No effect, rear end Oil change no effect. I have had the car for almost 2 years and 30,000 km. and it has never changed. I have a 2004 XK8 with the same power train and do not have the issue. Does anyone else share this issue or ever found a fix?