transfer case???

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scottyrock

NAXJA Forum User

Location

springfield,mo

• Feb 5, 2009

• #1

I have a 91, I6, aw4, auto, 4wd. I was in 2 wheel drive yesterday when I lost traction on an icy parking lot. The front wheels were on dry pavement but the rear was on the ice. I put it in 4 wheel high but my front tires didn't pull at all. If my research is right my transfer case is a 242J. I assume if the transfer case had issues I wouldn't be going anywhere at all... right? Any ideas on why the front wheels won't turn in 4wd?

 

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ChiXJeff

Curmudgeon

NAXJA Member

Location

SE MN

• Feb 5, 2009

• #2

If you've got a 242, you should have a 4hi fulltime and a 4hi parttime position. There's a differential in the transfer case. In 4hi fulltime, the front end does get power, but can spin at a different rate from the rear end. In 4hi parttime, the diff is locked, and both driveshafts will turn at the same rate. Of course, this is assuming all is well inside the tcase.

 

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scottyrock

NAXJA Forum User

Location

springfield,mo

• Feb 5, 2009

• #3

Thanks. Maybe it's not a 242. My options on the console are 4H, n, 4L.

 

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jeepman121

NAXJA Forum User

Location

Ohio

• Feb 5, 2009

• #4

best case scenario...your linkage rod is bent/broken. See if you can manually engage the tcase from under the jeep...if not good luck.

 

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Brad Klammer

NAXJA Forum User

Location

Surrey, BC

• Feb 5, 2009

• #5

Your case is a 231 command track

 

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scottyrock

NAXJA Forum User

Location

springfield,mo

• Feb 5, 2009

• #6

thanks brad. That has a vacuum line right? If so I guess it is possible the line is off.

 

Begster

NAXJA Forum User

Location

Cape Cod/Boston, Mass

• Feb 5, 2009

• #7

No, the case engages through the shifter linkage. As said before, double check that is all right.

 

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ChiXJeff

Curmudgeon

NAXJA Member

Location

SE MN

• Feb 5, 2009

• #8

91 is is a CAD axle, should be a vacuum motor on the passenger side to engage the axle shafts. You still control the tcase with a mechanical linkage, there's a vacuum switch that will flip the vacuum on for the axle motor.

You should also have a 2hi on your tcase bezel.

I'd start with the linkage.

 

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scottyrock

NAXJA Forum User

Location

springfield,mo

• Feb 5, 2009

• #9

Great. Thanks guys. I will start with the linkage then look at the vacuum and cad. Much appreciation.

 

asp

NAXJA Forum User

Location

Westport, MA

• Feb 5, 2009

• #10

if the linkage is a little out, moving the lever a little to the right and back until you feel it engage works well. ask me how i know.

 

joe_peters

NAXJA Forum User

Location

Grants Pass, OryGun

• Feb 5, 2009

• #11

Go somewhere you won't get stuck, and try your 4H again. There is a delay in engagement and if you aren't moving forward it may not engage.

 

joe_peters

NAXJA Forum User

Location

Grants Pass, OryGun

• Feb 5, 2009

• #12

This thread has info on testing the vacuum motor:

http://www.naxja.org/forum/showthread.php?t=980642

Other things could be worn shifting fork and bad vacuum switch.

 

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Brad Klammer

NAXJA Forum User

Location

Surrey, BC

• Feb 5, 2009

• #13

I find that rolling in neutral going about 10-15 km/h and then engaging the t-case works too. I might be crazy but sometimes I have to go in reverse to get it to actually lock into 4wd, then again I'm pretty sure my t-case needs an overhaul.