One problem related to crankcase (pcv) has been reported for the 1996 Jeep Grand Cherokee. The most recently reported issues are listed below.
Vehicle was loosing power, cutting out and dying. While accelerating or driving at a constant speed it would cut out. When you would slow the vehicle to stop or turn it would die loosing all power steering, brakes, etc. Check engine light would turn on but sometimes the reading would be lost by the time it went to mechanic. Crank shaft sensor was replaced with a napa brand. Still the problem kept happening. Several other parts were replaced over 3 years trying to figure it out. Finally in March 07 the mechanic replaced the crank shaft sensor again but with a factory part. Haven't had any problems since. I am upset because I had to pay for a part to be preplaced twice plus others, exceeding $1000 because the after market part wasn't compatible with my vehicle. Either napa needs to stop making this part or Jeep needs to let consumers know that this particular part won't work. Have read reports of other vehicles having same problem. Maybe this could help them.