totalvideo2
NAXJA Forum User
- Location
- port orchard
88 xj np 242 tried to put in 4wd and wouldn't go into full time, stuck in part time and when i turn grinding noises coming from front of jeep. need advice
Lift the front off ground, Put it in 4wd and crawl user and try to turn the front driveshaft. With the trans in park. If it turns the grander add is not engaging. If it doesn't turn most likely you vacuum actuator for your disco axle is either not getting vacuum or is dead.
The grinding is it when you try to use 4wd and turn or in 2wd. If 2wd check your u-joints. Same in 4wd but in 4wd also the collar for the disco axle might be just on the edge of connecting. But also if you can turn the driveshaft in the test above when in 4wd and in park the transfer case is trying to catch but can not.
Also a couple of months ago the vacuum line had come off the front axle and i just re-attached it, havent put the jeep into 4wd since yesterday.
84 rthrough 86 had vac disco with part-time t-case and without if full-time.Check the 4x4 shifter linkage, adjust if necessary. As for the grinding noises usually I have experienced binging, popping and hopping when in part time on drive pavement.
Also, didn't some early XJs some with the 229 and a vac disconnect?