I have a feeling this has probably been answered before considering I know this is a pretty common problem with Cherokees. I have a '99 Cherokee straight 6 4.0 liter and I am having a big problem with it overheating right now. I seem to get this more in the summer time which does make sense since it IS hotter outside but I have already replaced the thermostat on it and flushed the system (it has been a little while since I did this though) and I am still getting the overheating problem. I am more or less wondering if any one here has any handy tricks to help alleviate the overheating problem. If any one needs more info as to the Jeep I would be happy to provide it. I love my Jeep but the overheating problem is starting to kill me.