My 03 Range Rover began pullin hills strange once I would get to a hill it would not shift out of second gear until I reached flat land and let go of the gas pedal, next it jerked a couple times when i put it in gear, then one day while driving it jerked after accelerating from a stop light and flashed trans. failsafe prog. it would only drive in 1st and 2nd gear then I pulled over and put it in park turned the car off and restarted it and then shifted into drive and it just drifted backwards, that same day I went up to the dealership after having it towed up there and started it up and put in drive and rev. and it worked fine. Dealrship said they found some high resistance wires and bad connections but also say they believe that there is internal transmission problems and they start at $10000. It has 62000 miles on it very clean. Any suggestions on what too look for so I dont get over-chargedd by dealer?