Hi,
I recently did an engine swap on 1983 300SD that had a failed engine but good transmission. The old engine was pulled out with the transmission, the tranny was moved to the used replacement engine and finally put back into the car. All fluids were replaced and the car was started. The levels in the transmission looked good at idle in park so I backed the car out of the garage. I shut off the car and came back to it a few hours later. Now the transmission does not engage in any gear and refuses to move. I checked the transmission and lines for leaks and check the levels and everything looked good. Could the vacuum controls on the replacement engine be the cause? More importantly could a simple issue like a vacuum leak cause the described symptoms?
The fluid and filter was changed in the transmission and the shift lever is hooked up and correctly selecting each gear. Park engages correctly and locks the transmission. If I move into any other gear it as if the transmission is neutral.
Thanks!
Aydaen