89' 760 Turbo - Tranny problem

Problem started about a month ago, here are the symptoms:

- from a dead stop tranny won't engage up through the gears until about
4000-4500rpm (I have to manually go off the gas pedal momentarily to engage
the tranny to a higher gear to prevent the rpm's going so high).
- between 55-65km/h and 95-105km/h while cruising, anytime the tach goes
above 2500rpm the tranny drops to a lower gear until pass the 65 or 105km/h
then goes back up to the appropriate gear (I would have to speed up just so
I get above the two speeds just so I'm cruising at a reasonable rpm).

Note: No leaks. Tranny fluid has been checked with a warm engine while
idling on level ground.

Any suggestions on a fix would be greatly appreciated.

Norbert

"Norbert" <norbs DeleteThis @sympatico.ca> wrote in message
news:upwvd.7293$%p1.731204@news20.bellglobal.com...
 > Problem started about a month ago, here are the symptoms:
 >
 > - from a dead stop tranny won't engage up through the gears until about
 > 4000-4500rpm (I have to manually go off the gas pedal momentarily to
engage
 > the tranny to a higher gear to prevent the rpm's going so high).
 > - between 55-65km/h and 95-105km/h while cruising, anytime the tach goes
 > above 2500rpm the tranny drops to a lower gear until pass the 65 or
105km/h
 > then goes back up to the appropriate gear (I would have to speed up just
so
 > I get above the two speeds just so I'm cruising at a reasonable rpm).
 >
 > Note: No leaks. Tranny fluid has been checked with a warm engine while
 > idling on level ground.
 >
 > Any suggestions on a fix would be greatly appreciated.
 >
Kickdown cable broken / come unhooked in the wide throttle / kickdown
position????

Tim..<!-- ~MESSAGE_AFTER~ -->