Transfer Case 4Lo Problems. Any ideas?
#1
Transfer Case 4Lo Problems. Any ideas?
Hi guys,
I've noticed on my vehicle when in 4 Lo I get a metal on metal grinding noise. 2H or 4H are all good. Just sucks riding the clutch on the trails in 4H instead of listening to grinding in 4Lo.
I have shift stick 4WD with ADD. w/o one touch 2-4 selector as the fsm calls it.
I've never opened a transfer case up before so I do not have a good visual of whats going on in there. I attached one of the diagrams from the fsm which is helpful, but it would be more useful to talk to someone who has had a play with one. Or knows whats going on.
I asked a buddy if it would be a bearing, but he believes all the bearings are always spinning its just weather its engaged or not.. . so you would always hear it grinding if it was. Not sure if thats how it works or not. Sound reminds me of that grinding noise u get from a really bad ujoint i guess.
I looked at rebuild kits and used transfer cases from the scrap yard and both options are very expensive. I would rather just replace or fix the malfunction than throw money at it. I understand without seeing it yourself its almost impossible to diagnose for sure, but any insight would be great.
Thanks guys.
I've noticed on my vehicle when in 4 Lo I get a metal on metal grinding noise. 2H or 4H are all good. Just sucks riding the clutch on the trails in 4H instead of listening to grinding in 4Lo.
I have shift stick 4WD with ADD. w/o one touch 2-4 selector as the fsm calls it.
I've never opened a transfer case up before so I do not have a good visual of whats going on in there. I attached one of the diagrams from the fsm which is helpful, but it would be more useful to talk to someone who has had a play with one. Or knows whats going on.
I asked a buddy if it would be a bearing, but he believes all the bearings are always spinning its just weather its engaged or not.. . so you would always hear it grinding if it was. Not sure if thats how it works or not. Sound reminds me of that grinding noise u get from a really bad ujoint i guess.
I looked at rebuild kits and used transfer cases from the scrap yard and both options are very expensive. I would rather just replace or fix the malfunction than throw money at it. I understand without seeing it yourself its almost impossible to diagnose for sure, but any insight would be great.
Thanks guys.
Last edited by 1996Tacoma; 05-21-2012 at 07:25 PM.
#5
#6
Contributing Member
iTrader: (3)
Interesting. All you're doing is shoving the low range gear into the planetary gearset. Soooooo, its either not doing that or you're not in 4wd....at all.
Is jack it up on stands and make sure its in 4wd. When was the last time you ever had it successfully in 4lo?
Is jack it up on stands and make sure its in 4wd. When was the last time you ever had it successfully in 4lo?
#7
I just picked up some GL4 gear oil to replace the GL5 stuff thats in there. Will see if that helps any.
Trending Topics
#8
Can you see much from the top of the transfer case by just removing the shifters in the cab?
Will save taking the whole thing out which will be a task.
#11
You're exactly right. I did this today expecting more but that's all u can see. Unfortunately I think the only way to solve this thing is to open up the t case. Looks like a big job. Rebuild kits are expensive and comparable to just getting a salvaged tcase from the wreckers.
Thread
Thread Starter
Forum
Replies
Last Post
mYnAmEiSmUd
95.5-2004 Tacomas & 96-2002 4Runners
2
07-20-2015 06:48 AM
crashburnoveride
86-95 Trucks & 4Runners
1
07-10-2015 06:39 AM