Hi, a new problem now today the rangie (2.5 dse, automatic) was driving fine (gears changing smoothly) when I pulled in to park, I put it into reverse and it was fine and then when put back into drive, nothing happened. After freewheeling to a safer place it wont engage any gears at all, and makes a slight crunching/grinding sound when trying to engage park, anyone got any ideas or is it new gearbox time?