My mom just called me because they took their 2000-2001 (she couldn't remember) jeep (pretty sure it's the 4.0) into the mechanic because they just started noticing the oil pressure gauge read 0 when they would come to a light or stop sign. When they started driving, the pressure came up and it was fine.
Well, their mechanic told them the whole motor needed to be replaced and that this was a notorious issue for the jeeps. Now, that doesn't seem to make sense to me, but I wanted to get other's opinions and if anyone has heard of this.
I"m off to the google to see what I find, but trust everyone's expertise here over google links.