Transfer case gear grinding - JeepForum.com
 
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post #1 of 10 Old 08-19-2012, 08:50 PM Thread Starter
Compgeek789
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1994 ZJ 
 
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Transfer case gear grinding

It seems like right after I fix one problem with my ZJ another shows up. I always hear random growling and have random vibrating coming from the front end. I have the quadra-trac model transfer case so I never really switch it out of 4 all time. Today I was cruising at about 30 mph and the transfer case made a deafening grinding noise. I had to limp my jeep home while holding the case shifter forward in 4 AT (i don't know if it helped or not). Was it just a simple case slip or is there any possible failure?


RIP 1994 ZJ 5.2
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post #2 of 10 Old 08-20-2012, 09:55 AM
02Lightning
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The random vibrating coming from the front end sounds like the death wobble to me. Also when that transfer case fails it defaults to locking all four wheels together and it shouldn’t make a deafening grinding noise when it fails unless you broke the chain inside. If you think it’s your transfer case I would check the fluid level. Also does it jump and buck when turning corners?

1995 Jeep Grand Cherokee Limited 4.0L NP249 Transfer Case, 42RE, 212,000 miles
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post #3 of 10 Old 08-20-2012, 10:54 AM
MN59ZJ
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I had a KJ with a 231 case that made grinding noises. I just replaced it with a 242. When I finally got around to taking it apart to see what was wrong, I discovered a retaining clip had broken off the main shaft & got sucked into the low range gears, causing all sorts of damage.

You may want to rebuild or replace.
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post #4 of 10 Old 08-20-2012, 02:49 PM Thread Starter
Compgeek789
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It does kind of handle funny when turning sharp, but no bucking. I found out I was driving for a long time with absolutely no fluid in the transfer case and feel very stupid right now and hope that I did not do too much damage to it (i had to drive at 20 mph up a highway in 4 low to a service center)

RIP 1994 ZJ 5.2
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post #5 of 10 Old 08-20-2012, 04:19 PM
02Lightning
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Quote:
Originally Posted by Compgeek789 View Post
It does kind of handle funny when turning sharp, but no bucking. I found out I was driving for a long time with absolutely no fluid in the transfer case and feel very stupid right now and hope that I did not do too much damage to it (i had to drive at 20 mph up a highway in 4 low to a service center)
That would do it.

1995 Jeep Grand Cherokee Limited 4.0L NP249 Transfer Case, 42RE, 212,000 miles
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post #6 of 10 Old 08-20-2012, 04:23 PM
MN59ZJ
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Make that REPLACE!
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post #7 of 10 Old 08-20-2012, 04:49 PM
sskilla
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Quote:
Originally Posted by 02Lightning View Post
The random vibrating coming from the front end sounds like the death wobble to me.
not DW. DW is unmistakable and is far beyond a random vibration.

it sounds like your vibration is linked to your TC problem.

and i also vote replace if its feasible. if not expect some down time while you pull the case and see whats what inside that thing.

good luck man.

'95 ZJ: 5.2 v8 / 231 Tcase / 46RH
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post #8 of 10 Old 08-20-2012, 08:02 PM Thread Starter
Compgeek789
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Quote:
Originally Posted by sskilla

not DW. DW is unmistakable and is far beyond a random vibration.

it sounds like your vibration is linked to your TC problem.

and i also vote replace if its feasible. if not expect some down time while you pull the case and see whats what inside that thing.

good luck man.
Now that you mention it, what is death wobble? (n00b question)

RIP 1994 ZJ 5.2
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post #9 of 10 Old 08-20-2012, 09:09 PM
sskilla
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DW is when your front suspension components get worn or damaged and end up with a little bit of play in them causing normal road vibration to increase in frequency and intensity.

in short, your worst F'n nightmare lol.

should you ever experience it, it is in fact unmistakable. you're first thought might be something like, "holy $hi#, im gonna die." as the jeep feels like its going to shake itself into another dimension.

do a youtube search and you can see some videos to get an idea.

'95 ZJ: 5.2 v8 / 231 Tcase / 46RH
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post #10 of 10 Old 08-21-2012, 02:02 AM Thread Starter
Compgeek789
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Location: Conway
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Thanks. I know that must have been one of the noobiest questions ever asked on the forum

RIP 1994 ZJ 5.2
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