Rough shift at 25 mph

MoparDan

Well-Known Member
Joined
Mar 17, 2011
Messages
844
Reaction score
405
Location
Daytona Beach, FL
Yesterday the transmission had a fairly rough shift at about 25 mph when I went to drop a neighbor off, did it every time, after I dropped her off I drove to a nearby gas station to check fluid level: it was on the OK part but right at the lowest point, I also noticed some bubbles, I drove home and now it shifted smoothly the whole way, no problems, about an hour later when I drove back to pick her up, fine the whole way. Today took a short trip (a couple of streets) shifting hard again. What's going on?
A little history: transmission is original and never rebuilt (as far as I know) currently 235k miles, in 2018 I had the transmission serviced, they told me I needed a new torque converter and showed me the magnet it had a bunch of shredded metal, I quickly found out the shop was crooked and they often put the metal shreds on the magnet... so I never really thought about it again. Fast-forward about couple of years all of the sudden the transmission seems to be dead-neutral no matter what, fluid was low put it in nothing, gave up (there's posts about that somewhere here) all of the sudden it works (months later) and we discovered the crooked garage had finger tightened the pan bolts and covered it in gasket sealant, (and there was zero metal on the magnet) bought new fluid and a filter, cleaned the inside of the pan, she's back in the road, it has shifted rough around 55ish, on and off, but I rarely go anywhere that fast other then twice month, it's shifted great lately too, until this past trip
 
Last edited:
When was the last time the transmission was serviced, I’ve had a 904 struggle with shifting and even going into gear because of a filter. Your fluid level might be lower than it should be also, top it off in park with a motor running. But it probably needs a service fluid, filter, bands adjusted there’s a good chance it has never been done before even with all those miles.
 
Last edited:
Back
Top