Hey everyone. I posted this on JeepForum too, but figured I'd join an XJ specific site since I'm sure there will be many more questions to come. I just picked up a 99 Cherokee that has been having issues stalling out. The previous owner replaced the throttle position sensor, air control valve, crankshaft sensor, and gave it a full tune-up. Nothing helped. He got tired of messing with it and let it go to me for pretty cheap. The first thing I did was clean the grounds. That seemed to help a lot, but it's still stalling when put in reverse. When in park, drive, or neutral, the Jeep runs perfect. When I place it in reverse though, it will buck and sputter out. Also makes a pretty scary clanking noise if it doesn't die right away. If the Jeep has rolled backwards any bit at all it won't start back up. But if I put it in neutral and roll it forward just a bit, it will start right back up no problem. Any ideas on what this might be? I'm thinking possible torque converter issue.