Hi all,

Have a real problem with my S660 auto transmission on the Hymer 1986 2.9 deisel 410 chassis motorhome.

I have had the auto box rebuilt by a specialist company but they are unable to get the box to work without slipping in fourth gear. They are convinced it is a mechanical problem -- but honest in that they are unable to locate what the problem may be.

It works on a vacuum system which they do not understand and say that each time they put in the box it is fine -- but they are unable to get the pressure right and it burns out the fourth gear on test.

Everything was working fine until the box seized up -- they said it was because the pipe to the cooler split and the box "cooked".

I would be very grateful if anybody had any ideas to the problem?

Regards, tgee

 

Pipe split - so you lost the trans fluid? Probably need to rebuild the trans.