4WD Not Working
Seasoned Member
Joined: Mar 2008
Posts: 349
Likes: 1
From: Mentor, OH
Year: 2000
Model: Cherokee
Engine: IL6 4.0
Start with the simple things and check the fluid in the tranny and transfer case. If both of those are okay, you may have to adjust your linkage going to your transfer case.
Thread Starter
Junior Member
Joined: Dec 2008
Posts: 42
Likes: 0
Year: 1999
Model: Cherokee
Engine: 4.0
I changed all of the fluids including both diffs, and the front differential looks good to me didn't see anything... The linkage is fine since it goes into 4lo as if its in 2lo since the 4wd doesnt engage... I'm assuming its the front axle vac disconnect...?
CF Veteran
Joined: Nov 2008
Posts: 6,989
Likes: 4
From: Oak Harbor, WA.
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Check 2 things before you sling your vacuum disco into the weeds. Check all of your lines to ensure you have good vacuum getting to your disco. Might just have a line loose, cracked or that has come off. Another one to check is that the vaccum line has not come off at your little vacuum tank on the passenger side up inside the front bumper. I hope this helps.
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