Recently purchased 2002 Jeep TJ // 4.0L I6 // 32RH // 110k
I started with some basic leak chasing. Replaced the valve cover gasket and found the oil sender leaking.
I've got everything resolved and dry and decided to drop the AT pan and replace the filter.
Everything is great and leak-free. Seemingly randomly, the Jeep starts leaking AT fluid after being parked for about four days. It was a hot day, and earlier in the day, I had purposefully/obsessively checked for any leaks and found nothing, then an active dripping leak with a drop every 30min or so.
The leak is coming from behind the inspection cover, and the pan is dry. I check the AT fluid level, and it is very overfilled. That is confusing because I know I verified this level after the pan drop and filter change, which was completed a month ago.
Scratching my head, I decide to let the Jeep engine run to operating temp and shift the transmission into neutral and check the fluid level. I look under the Jeep, and there is a lot more fluid which leaked but isn't actively leaking now... maybe 3 oz. I check the AT fluid level... it's perfect.
I cleaned up all of the leak residue and let it sit for another couple of days. Another hot day comes, and the same scenario plays out... fluid level is high and AT fluid is leaking on the ground... there were no leaks between the two incidents.
Could it be a seal? How is the fluid level balance changing?
I started with some basic leak chasing. Replaced the valve cover gasket and found the oil sender leaking.
I've got everything resolved and dry and decided to drop the AT pan and replace the filter.
Everything is great and leak-free. Seemingly randomly, the Jeep starts leaking AT fluid after being parked for about four days. It was a hot day, and earlier in the day, I had purposefully/obsessively checked for any leaks and found nothing, then an active dripping leak with a drop every 30min or so.
The leak is coming from behind the inspection cover, and the pan is dry. I check the AT fluid level, and it is very overfilled. That is confusing because I know I verified this level after the pan drop and filter change, which was completed a month ago.
Scratching my head, I decide to let the Jeep engine run to operating temp and shift the transmission into neutral and check the fluid level. I look under the Jeep, and there is a lot more fluid which leaked but isn't actively leaking now... maybe 3 oz. I check the AT fluid level... it's perfect.
I cleaned up all of the leak residue and let it sit for another couple of days. Another hot day comes, and the same scenario plays out... fluid level is high and AT fluid is leaking on the ground... there were no leaks between the two incidents.
Could it be a seal? How is the fluid level balance changing?