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4 wheel Drive stuck
Posted: Tue Nov 13, 2012 4:41 pm
by devrjays
Hi Everyone,
I have a 91, l300 with a 4wd issue.
right now I can't get it out of 4 hi. before it was stuck, it worked fine going in and out of 2-4hi, but would not go into 4lo.
So far I have disconnected the cables from the shifter, and transfer case and they are both free.
I have tried rolling back in neutral, shifting on the fly and in park...ect.
has anyone had issues with the front diff vacuum actuator? or the transfer case?
any helps or ideas would be great, thanks.
J
Re: 4wd Drive stuck
Posted: Tue Nov 13, 2012 5:03 pm
by nxski
Mine got stuck in 4H once because of turning sharply right on asphalt with 4wd engaged. My solution was to shift into 2H and boot it in reverse, I heard a loud clunk and all was good.
Will the shifter not move or it just won't shift out of 4wd?
Re: 4 wheel Drive stuck
Posted: Tue Nov 13, 2012 9:08 pm
by devrjays
the shifter will not move at all. I am going to jack the whole van up tomorrow, inspect the actuator and try to manually engage the transfer case...
any one have other ideas?
J
Re: 4 wheel Drive stuck
Posted: Wed Nov 14, 2012 12:11 am
by RichD
Are you sure the clunk wasn't something falling off your roof rack?
Re: 4 wheel Drive stuck
Posted: Wed Nov 14, 2012 12:28 am
by nxski
RichD wrote:Are you sure the clunk wasn't something falling off your roof rack?
This was in the early days of Hermione, before the nice rack...
Re: 4 wheel Drive stuck
Posted: Wed Nov 14, 2012 12:10 pm
by devrjays
fixed.
4wd low cable off transfer case, and found the lever on top off the transfer case that engages 4 lo, was stiff/seized. I worked it free with penetrating fluid and fluid film. works great now.
reason why it wouldn't go into 2wd, was because it was slightly in 4 lo, and that made it stuck in 4 hi.
It would be good practice to shift through all 4wd modes periodically just to keep things moving freely.
Unless you are four wheeling on a daily bases.
I'm on it now.
J
Re: 4 wheel Drive stuck
Posted: Wed Nov 14, 2012 7:25 pm
by FalcoColumbarius
Could it have anything to do with the age of the T-case fluid?
I change the fluid every couple of years and when I first read your post that thought came to mind.
Falco.
Re: 4 wheel Drive stuck
Posted: Fri Nov 16, 2012 9:13 pm
by joshh
nxski wrote:RichD wrote:Are you sure the clunk wasn't something falling off your roof rack?
This was in the early days of Hermione, before the nice rack...
okay, now I get the reference.

Re: 4 wheel Drive stuck
Posted: Fri Nov 16, 2012 10:19 pm
by mararmeisto
FalcoColumbarius wrote:Could it have anything to do with the age of the T-case fluid?
Falco.
Cable. Fluid. Two different functions.
The cable moves the mechanical bits into position in order to engage 4WD.
Fluid lubricates mechanical bits that are now moving because they vehicle's in 4WD.
Other poster made a valid comment - one that's in the owners manual of every 4x4 - to periodically shift the vehicle through the different drivetrain configurations. One of the reasons is to ensure that moving parts still move.
Good fix.
And Hermione still has an awesome rack, and I don't care who knows it.
Re: 4 wheel Drive stuck
Posted: Sat Nov 17, 2012 11:09 am
by Mr. Flibble
devrjays wrote:fixed.
4wd low cable off transfer case, and found the lever on top off the transfer case that engages 4 lo, was stiff/seized. I worked it free with penetrating fluid and fluid film. works great now.
reason why it wouldn't go into 2wd, was because it was slightly in 4 lo, and that made it stuck in 4 hi.
It would be good practice to shift through all 4wd modes periodically just to keep things moving freely.
Unless you are four wheeling on a daily bases.
I'm on it now.
J
Yes! It is always good to use any function like that to keep it from failing. The same goes for your e-brake as well! If you don't use it it can seize too.
Re: 4 wheel Drive stuck
Posted: Sat Nov 17, 2012 6:02 pm
by FalcoColumbarius
mararmeisto wrote:FalcoColumbarius wrote:Could it have anything to do with the age of the T-case fluid?
Falco.
Cable. Fluid. Two different functions.
The cable moves the mechanical bits into position in order to engage 4WD.
Fluid lubricates mechanical bits that are now moving because they vehicle's in 4WD.
Other poster made a valid comment - one that's in the owners manual of every 4x4 - to periodically shift the vehicle through the different drivetrain configurations. One of the reasons is to ensure that moving parts still move.
Good fix.
And Hermione still has an awesome rack, and I don't care who knows it.
Thanks Marameisto, always good to learn something. And I agree with you, Hermione does have a nice rack.
Falco.