smoothrider1
New Member
New to me 97 8.3 with 3040. Sometimes everything works as it should. Just took 5 hour trip no prob. On way home ran great for3 hours then acted up the last 2 hours. Trans will start going up an down in temp, between 170 and 230. When this happens it does not shift smooth between 3rd and 4th, will rev up to 3000 rpm before shifting into 4th. Also the exhaust brake will not work. No codes on shift pad and reads fluid ok. Took to freightliner shop and could not find anything wrong. 35000 miles and dont know if fluid and filters have been changed. Any ideas? Thanks