Originally Posted by mtgott
Trans seems to operate properly in all modes except when downshifted or in any gear except OD there is no engine brakeing. The gears seem to change but there is no brakeing, seems to freewheel. Any ideas? Thanks Mark
No engine braking in 3rd gear or 2nd gear in manual selected mode of the shifter on this 4L60?
That would indicate the over run frictions are not working correctly.. often the stamped steel drive hub has broken out the center, or the over run frictions are burned up.
Over run frictions can be burned up by down shifting manually at speed from OD to D or 2nd gear ... allowing the over run frictions to apply slowly. There are only 2 small over run frictions.