No 4WD engage - fixed
 

My son posted a while ago that his 95 Wrangler wouldn't engage in 4WD.
Thanks to those who posted about the vacuum lines most likely being broken
under the battery box - that's exactly what was wrong and exactly where they
were broken. A replacement vacuum harness from the dealer and 20 minutes
under the Jeep and he's good to go again.
Thanks!