i replaced the vacuum switch in the T/C and filled it up with fluid. front diff is still not engaging, driveshaft spins to it.

https://www.cherokeeforum.com/f2/4x4...ed-pics-37109/

i didnt check if i was getting vacuum to the modulator on the diff yet with the new switch in yet ill check tomorow...but why would i get no vacuum still i dont hear any leaks or see any. Is there a check valve im missing

AX15 NP 231 1989 cherokee w nitrous and a working clock

Update: i have a Pueesh!t tranny not a AX15 im soooo pissed.

 

http://members.***.net/offroadn2/2low.htm

http://www.jpmagazine.com/techarticl.../photo_01.html

http://www.stu-offroad.com/axle/yjd3...jconvert-1.htm

some options for you

 

The shift motors on the axle housing are notorious for failing with age. They are not a seal unit and water and dirt eventually work their way inside and damage the diaphram. Also the vac lines can become weak and brittle with age causing vac leaks.

 

do away with the vac motor and put the cable in. then there is no question.