I'm having trouble with the gear change on my 2001 DHSE automatic. The gears won't change up. At about 3500 RPM the gear reluctantly changes up and the revs drop off but after the throttle is pressed the revs shoot up again. The gearbox is obviously running in low gear. Moving the gear lever has no effect.
The fault was thought to be the transmission controller and as mentioned in a previous post the garage fitted a petrol version transmission controller (diesel version not available) and the gears changed up and down OK but the changes were clunky due to changes being made at the wrong settings.
I have now fitted a replacement diesel version with the right specification and again the gears won't change up same as with the old unit. No fault codes are logged so seems there is something else causing the problem. Can anyone shed some light on the problem?
The fault was thought to be the transmission controller and as mentioned in a previous post the garage fitted a petrol version transmission controller (diesel version not available) and the gears changed up and down OK but the changes were clunky due to changes being made at the wrong settings.
I have now fitted a replacement diesel version with the right specification and again the gears won't change up same as with the old unit. No fault codes are logged so seems there is something else causing the problem. Can anyone shed some light on the problem?