I recently purchased a 03 TJ 4.0 145,000 miles with an automatic transmission and noticed when driving with overdrive on the transmission seems to slip (rpm's jump up) as it goes from I think 3rd to 4th gear. I have recently changed the filter and fluid hoping it may help but it didn't. All other gears shift fine and only seems to happen if I leave the overdrive on. Could this be my transmission going bad
04-24-2013 08:32 PM
Slips are always not good! Just drive it with overdrive off all the time then. The 42rle always had a bad wrap. It's a 3 speed with overdrive(4th pretty much). What was the fluid like when you change it? Black? Burnt? Make sure to only use ATF+4.
04-25-2013 06:00 AM
The old fluid looked okay it didn't have a burnt smell and it still had a nice red color to it.