Hey all.. Did my LIM gaskets yesterday, now Im having an issue with no working taillights. This is on my 1999 Crew Cab W/t with the L31. See my brake lights work, turn signals work, and eveything, its just the running lights (marker lights, dont come on, however my front marker lights come up just fine, same with my liscense plate bolts. Now I looked through a diagram online at http://www.gmtruckclub.com/forum/showthread.php?t=13937, and from what I gather, I dont think its a ground issue, because my logic tells me if the ground was not connected, I would get nothing at all from the tail light. Which then leads me to look at the brown wire itself, which runs from the park lamp switch through to the parking lights, and other lights on the truck. Im thinking a likely spot for failure would be rear lamps harness which says its "ear the tail light extension harness break out" but jeeze. I dont know where that is.. Any ideas? Or is there a common fault that I should be looking for? I tried searching, but for the most part I got people with issues of the tailights or signals not working due to the multifunction lever not working. Oh.. Incidently, I noticed my oil pressure guage is maxed ouut off the scale. Could this be related?