H2 transmission noise
H2: I have a transmission problem in that everything seems to work fine in 4Hi but when I shift to 4Hi lock or 4lo lock I get a bad clunking sound from the front which seems worse in corners. When i get this it then seems reluctant to move out of lock. And i have to fiddle quite a bit to get it back to 4Hi.When in neutral the lights work as they should and the transfer box seems to make the right noises. Anyone any ideas?
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sounds more like a transfer case or front diff issue than a transmission issue. have you checked your diff and transfer case oils?
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Thanks, yes I checked oil levels in front diff and transfer box as I did suspect these but they are all OK.
My thinking is that if everything works in 4Hi why would the diff act differently in 4lock |
is the transfer case actuator motor functioning properly? it would be mounted externally on the transfer case.
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Yes it seems to be. I took it off to check and also have no problem going into the various modes and you can hear the normal "clunk" when changing from Hi to Lo. When I hold the rear prop and try to move the front prop there is about half an inch of movement, not sure if thats normal with a chain? The front right axle has a good bit of movement in it but again not sure if thats normal as I would expect some movement in the front diff.
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are you locking on pavement or dirt? if on pavement its a known issue to make noises and have issue unlocking / binding. lock mode is for loose ground.
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Some loose ground initially, I did test it on pavement when I went home but only for one wheel rotation. Problem happens on loose ground as well, even tried in in some mud as well just to be sure.
I have found others who have had similar problems and they have had various causes, front diff, CV joints and transfer case bearings. I have checked what I can on CVs and diff and nothing seems terrible but a little loose. Transfer case not much to check without stripping it down which I dont want to do unless I am sure there is a problem. |
Though I would update you. I found the problem, turns out to be a badly worn transfer chain that slips when in lock. Have a new one on order but quite a bit of work for me. thanks.
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Originally Posted by Eddy Lee
(Post 361414)
Though I would update you. I found the problem, turns out to be a badly worn transfer chain that slips when in lock. Have a new one on order but quite a bit of work for me. thanks.
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