genevamotorsports
NAXJA Forum User
- Location
- Geneva, FL
I need help with this one...Yesterday my auto transmission overheated on a normal trip to work after about 15 miles of driving. It was 95 degrees out but this is the same trip and temps I've driven hundreds of times before without an issue. It is easy, in town, 45 mph with a few lights here and there. I noticed a hot oil smell right before stopping at a light and then it would barely move from the stop. I had to throttle it hard to get it into a parking lot on the corner. The trans. spit a little fluid and was very hot. The engine temp. was normal. The front diff. was just warm. The rear seamed normally hot but I would not get burned touching it. I picked it up on my trailer and took it home. Of course after cooling, it runs perfect. I jacked up each end with the transfer case in neutral and all four tires spun freely. All fluids are good. The cooling system is basically all new. The trans. fluid and filter are recent and clear with no water intrusion. Both fans are working correctly. I would call this XJ over maintained and not abused. All we have in FL is water, sand and mud. It has 135K miles and a 3.5" lift and 31" tires for a couple of years.
Here's were the diagnoses gets complicated! Last weekend I installed (nameless) lunchbox lockers in both axles. The installation went smooth and all specs. and backlash measured perfectly. They seem to work properly. While on the lift I also changed all the brakes (everything) and all seems good with those. Due to the lift already in place, I took the opportunity to correct the drive line angles at this time also. This included a 1" TC drop, leaf shims and tweaking my adjustable control arms. All this made the ride super smooth. Theoretically, this should lessen the strain on the drive line. Again, I can spin all wheels freely and easily hand turn them by the drive shafts.
To add more headache to figuring this out, I put it through a very wet ride with my local Jeep club a couple of weeks ago. Due to recent rains, we're talking 2.5 ft+ of water crossings. It did great and didn't even sputter the whole night. No blown fuses or other lingering water problems that I know of. I thought of the trans control but it seems to be shifting properly.
Sorry for being long winded but I thought too much info is better. It can't be coincidental with all this new work and the recent deep water. Where do I start? I don't want to overheat it and cook the tranny. I'm sure the problem is right in front of my eyes. Any ideas?
Here's were the diagnoses gets complicated! Last weekend I installed (nameless) lunchbox lockers in both axles. The installation went smooth and all specs. and backlash measured perfectly. They seem to work properly. While on the lift I also changed all the brakes (everything) and all seems good with those. Due to the lift already in place, I took the opportunity to correct the drive line angles at this time also. This included a 1" TC drop, leaf shims and tweaking my adjustable control arms. All this made the ride super smooth. Theoretically, this should lessen the strain on the drive line. Again, I can spin all wheels freely and easily hand turn them by the drive shafts.
To add more headache to figuring this out, I put it through a very wet ride with my local Jeep club a couple of weeks ago. Due to recent rains, we're talking 2.5 ft+ of water crossings. It did great and didn't even sputter the whole night. No blown fuses or other lingering water problems that I know of. I thought of the trans control but it seems to be shifting properly.
Sorry for being long winded but I thought too much info is better. It can't be coincidental with all this new work and the recent deep water. Where do I start? I don't want to overheat it and cook the tranny. I'm sure the problem is right in front of my eyes. Any ideas?