driving back from TR6 day today at Wroxall ( fantastic day - thanks to all involved ) and car suddenly surges up to a range of 3000 to 4000 revs and will not return to normal -luckily I was only 5 miles from home but the car basically drove itself home and I did not have to touch the accelerator! I was busy braking and switching between 2nd and 3rd just to try control it !
when I got home I cut the ignition and then re-started - the engine immediately went to 3000 rpm in neutral.
i have no idea what could cause this but can only say I did make rare use of my overdrive today as if was a long motorway journey - could that be the problem ?
any help greatly appreciated