adobewerk

runs like a top. Trans fluid clean and at the correct level. shifts as normal, but once it gets to 4th gear, it disengages and the engine free revs. I am forced to shift manually into 3rd gear and then it will pull fine (but rpm's too high for freeway). If i come to a stop i can put it back in drive and it will run through the gears again, but once i get to 4th the same thing happens.

I have had it on a hoist and have gone over every inch looking for vac leaks etc. everything is in order.

any thoughts or precedent??

thank you!

C32AMG/02

No 4th can be valve body or K2 drum, internal leak. Not a DIY job.

MTI

Have the throttle cable, especially the adjustment at the engine side, near the microswitch, inspected. It may have slipped or been fiddled with.