I have done allot of searching but I have not been able to find any possible solutions to my problem.
I have a 5spd NV3550. It shifts fine before the transmission properly warms up. No grinding or resistance just smooth shifts.
After it reaches operating temp the transmission begins to become difficult to take out of gear. It mainly happens in third but I believe it has happened at least once in all gears except maybe reverse. It does not grind or make any noise and seems to shift into gear smoothly.
It is also intermittent. It does not do it every time. I noticed if I hold the RPM when I push in the clutch it seems not to happen. Also if I pull it and it offers resistance and I let go then pull again sometimes it comes out smooth. Sometimes it just doesn’t do it (stick).
I found a Service Bulletin about this problem but I believe it is for 2000 and older models. It says the problem is the detents are not properly greased. I will try what it suggests to see if that fixes the problem but seems like that should be fixed since I have a 2004.
I changed the Trans oil with Pennzoil Synchromesh and it still does it. I also noticed it looks like the Trans fluid had very recently been replaced. It has a new clutch as per the previous owner.
I just bought the jeep a few days ago. The seller says he has never noticed the problem. (Probably lying)
I also found this post on a few websites but it had no replies it was from 2009. It sounds like the same problem.
Quote is from Pirate4X4.com poster is jnowacek
Transmission hard to get OUT of gear -2003 TJ NV3550 (long post) - Pirate4x4.Com Bulletin Board
Transmission hard to get OUT of gear -2003 TJ NV3550 (long post)
Apologies in advance for the long post – this has been a long, drawn out issue…
2003 TJ, 4.0, NV3550 5-speed manual trans, 70k miles (under warranty), 3:73, 31x10.5.
Problem occurs more frequently when outside temps are warm (above 80).
After driving long enough to warm transmission, it is difficult to get the transmission OUT of gear. Just seems to stick in gear and you have to pull hard on the gearshift to get it out of gear.
The problem is intermittent, and can range from only mildly more difficult to shift than usual to having to really yank it to get it out of gear. Occurs primarily coming out of third and fifth gears.
So far, here’s what’s been done to diagnose and fix the issue:
Took it to the dealer. Dealer concludes, after many test drives and calls to the Chrysler tech line, it is a clutch problem, not the transmission, that the close tolerances in the clutch can lead to these symptoms if the clutch does not fully disengage. Suggests I replace the clutch to eliminate that as a cause before they diagnose further (transmission is a warranty part, clutch is not…). I have my doubts about this theory, but I don’t really seem to have a choice. So at my own expense (and with the help of some good friends) I replaced:
entire master/slave/hydraulic line assembly (it is all one piece)
new oil pan and rear main seals
This does not fix the problem. Back to the dealer.
Dealer completely disassembles the transmission, finds one worn out detent. The new theory is that this worn detent was allowing both shift rails to move simultaneously, causing the difficulty shifting. All other transmission internals are in perfect shape.
Dealer reassembles transmission, replacing worn detent and one other detent for good measure, along with many of the bearings and the shift forks. Within a few weeks I took a road trip, the weather had warmed up and the transmission was once again difficult to shift. The problem is still not fixed.
So I take the Jeep back to the dealer. Dealer checks with district manager to see if any other Jeeps have had this issue. District manager says he’s only seen one other example like this and that replacing the transmission in that Jeep with a brand new unit did NOT fix the problem. The district manager has a theory that the issue is related to bellhousing tolerances or some such thing. I have my doubts about this theory as well.
Because of the other Jeep that was not fixed by swapping in a new transmission, the dealer is not willing to replace the transmission in my Jeep. Said the owner of the other Jeep eventually sold it because of this issue. Not an option for me.
Has anyone had a similar issue in their Jeep? If so, what was the diagnosis and what fixed it? Any other theories?
Anyone have any Ideas? Anyone have this problem? I would appreciate any help.