Hello-
My 300sdl is a 300k+ mile car and the transmission is not shifting properly.
I bought the car 50K miles ago at auction so I only know history via
inspection. I suspect the transmission is original. With that backround - the
tranny doesn't shift into 4th gear. Here's what's been done:
- filter and fluid about 10K miles ago, fluid was good then, and still appears
as it should. Also passes the smell test.
- Tried Trans-X 200 miles back - no change.
- Ruled out bowden cable and kickdown switch.
- Checked all vacuum lines for leaks / have not hooked up a vacuum tester.
Now for some additional symtoms. If the car sits for two weeks or so - the tranny will shift into 4th. Although as opposed to the robust / solid shift of the
prior gears- I'll say it sliiiiiides into 4th. The car will shift fine for 20 miles or so,
then I lose 4th gear. If I keep driving - I'll go another 10 miles or so then I'll lose 3rd gear. I havn't pressed my luck past that. I suspect I'm in for a major
rebuild - but would like to have some idea what's causing the problem.
Any help would be greatly appreciated.
Glenn