Was accelerating between 50-60mph and the O/D OFF started flashing and the engine started redlining and dropped the gear to 3rd, managed to drive it home, it’s not going above 3rd gear now, the O\D switch wasn’t pressed and now the gearbox won’t go into reverse, and also I’m unable to put the gear selector into 3/2 or 1. It will only go into P/R/N/D. Put it up on stands and drained a litre out to the drain plug level, oil was pretty black hoping the transmission hasn’t burned out. I’ve got a...

Auto transmission fault