Hi EveryoneI am in need of some advice and help ! I have an 07 zafira 1,9d. It drives normally then suddenly the speedo needle starts flicking and bouncing up and down, soon after the speedo goes right round the clock and stays at maximum speed. The car then starts kangarooing and trying to cut out. If you are lucky you can go into second keep your foot down and after several minutes of near kangerooing, almost cutting out and embarassing car honking and traffic hold ups the engine then seem to go back to normal until the next time! I have taken it to garages and even the vauxhall dealer but they all say they do not know what the problem is.I am at the end of my teather and desperate for any help or advice anyone can offer please!!!