Caravelle Auto Box

[James JCD7]

I use our Caravelle in our chauffeur drive business. Its a Y reg 2.5 diesel with leather and front/rear climate. Though a little on the old side for us now it has in general been a great (and still popular) motor. The only problem - the auto box !! It was rebuilt (around 140K by a well regarded independant specialist), but despite having to go back twice for "re-adjustment" it has never been a great success. After a spell driving on twisty roads or after a bit of climbing the box obviously over heats badly, and is then very reluctant to change up. When it does change it comes with such a thump you think the whole transmission has dropped out. Very embarassing with people in the vehicle. The mileage is now about 165k.
I recently picked up great info on this forum about the vacum pump problem that creates a heavy "tappety" noise from the top half of the engine. Replacing the vacum pump (and solving the problem) was a lot cheaper than reconditioning the head. The "only answer" according to one of the independant garages I deal with.
Anyway back to my overheating auto box - anyone got any ideas ??
Thanks

[lewis100203]

hi james dont know if you got my message.are you interested in selling your caravelle e mail is conway70@ntlworld.com or mobile 07795231322 regards gary.

[caravelle dal]

try changing the temperature coolant sensor.