99 WJ transmission issues.
I am having issues with my 99GC, 4.0, auto (42re). History, I bought the jeep a month ago, I drove it 4 days no problems, on the 5th day it got stuck in first gear, but can manually shift to 2nd. gear, reverse and neutral the jeep won't move. I have sense changed out the transmission fluid and filter, no help, I thought perhaps there was an issue in the rear end or transfer case, not allowing the Jeep to move outside of first gear, so I pulled the transfer case, short of some play in the chain,nothing found, jeep can be pushed forward or backward, no problems.
Jeep when put in reverse makes a clunk, again no transfer case attached, and will not turn rear shaft, when giving gas, you can feal the engine torque, still no movement of rear shaft. I pulled the transmission pan, no miles driven only idling in driveway, shifting thru the gears to move fluid, and the pan in covered with sludge from transmission. I also pulled the valve body at this point and cleaned it thoughly.
I can find all kinds of issues with sylinoids, online, but can't find info on reverse being sylinoid operated or not, looks like 1st and 2nd are cable operated.
I'm thinking one of two things, and don't know if they are even possible, something has lodged in the transmission, catching only in reverse and neutral, or, first is staying engaged while also trying to back up.
I'm about to pull the transmission and replace, I thought I would try your thoughts first, any thoughts or suggestions are welcome.