Front differential what is the small hose that goes into the front differential? I found it handing down under the car (ZG Grand Cherokee). It does not appear to have any traces of oil or a wire but looks to be some sort of breather tube?....what can I do to remedy?

old post. ZJ car
see the hose at any dealer parts counter.
its just a hose and top cap vent
part 17 hose and cap 19 seen here


http://www.factorychryslerparts.com/showAssembly.aspx?ukey_product=4479258&ukey_assembly=599437&ukey_make=1064&ukey_model=15529&ukey_driveline=7401&ukey_trimlevel=0&modelYear=1993

the FSM is here (fact. serv. man.)

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

This is just a breather tube for the differential. It usually runs up and connects to the fender well. you can tie it to anything up high enough.

I'm betting your lines are 1 small 1/8 hard plastic line and 1 is like 5/16 rubber. after a tear down I found a 6 inck vacuum ball in the bumper

The breather hose goes to the inner frame on the drivers side.You can attatch it to anywhere as long as it is high enough with slack in the hose for suspension travel.
thanks,ramundoo

may be the breather hose for the axle. looking around can be difficult seeing theres not alot of room. there should be a stem coming out the top side of the axle, around the pumpkin.

Chrysler has a Technical Service Bulletin for drain blockage.
See TSB: 24-06-96
Affected Models:
1993 - 1996 (ZJ) Grand Cherokee / Grand Wagoneer
1993 - 1996 (ZG) Grand Cherokee (Outside U.S.)

Chrysler has a Technical Service Bulletin for an updated cowl screen.
See TSB: 24-17-97
Affected Models:
1993 - 1996 (ZJ) Grand Cherokee / Grand Wagoneer
1993 - 1996 (ZG) Grand Cherokee (Outside U.S.)

Contact us for more details.

This hose you refer to is the breather tube for the differential. It connects to a fitting at the top of the differential housing and runs up the back side of the radiator so you won't run the risk of water entering the differential if you submerge the front axle in water. Reconnect the rubber hose to the fitting on the differentail.

The Jeep has steering idlers (short 7" arms) that eliminate wandering. Sounds like they are worn but FIRSTLY check that you have 4 identical tyre pressures as just one tyre front or back being low will give you the wandering sensation in a 4x4

Regards

Lloyd

if you don't have experience with working on cars .... i recommend you take it to a mechanic you trust to assess what kind of work it would need. it's a small investment compared to buying someone elses problem

Drive the car in a parking lot and make left and right hand turns.
If the noise goes away on either turn then the problem is a front hub bearing.
If the noise is still there, it could be possible front differential bearings.