Changed the gearbox on my L322 as I had an issue and wouldn't lock up in park or steer under load as well as just slipping so my thought was a faulty gearbox. Fitted an unknown gearbox and everything solved for 2000 miles and then did it again so ok my revised thought was torque converter. As I had a spare gearbox I thought it prudent to change that as well and I had driven it for 5000 miles and knew it worked.
Recon torque converter fitted and the issue is still there. The only thing original in the drivetrain is the Transfer box and the ECU so is it one of those or something else. Computer isn't telling us anything. Current cars
Range Rover Sport HSE TDV8
Range Rover TDV8 Vogue
Range Rover P38 Vogue
Range Rover CSK
Discovery 3 HSE