Videobob: You may notice your car running hotter due to the current draw of the AC system. The needle of my temp gauge moves higher with the AC on, even higher when the lights are on, and higher still with the addition of the heater fan. I can watch the gauge move up and down the instant I turn on or off my lights. Perhaps this is what you're noticing with the AC, if not; I don't see a way that the engine would run hotter with AC running, it should run cooler. The belt broke because something caused the compressor or clutch to seize. I'm just getting to this post now, so I'm not sure what you've replaced so far. If you have reoccurring AC problems then perhaps you should get a new or known good used compressor to install. Do you have oil in the AC system-how much-what kind? Do you have a small leak somewhere that is allowing the oil to drain out of the AC system? When is the last time you changed the orifice and did a pressure test? These are all things to check out. If you know for a fact that the compressor/shaft/clutch is good, then there must be a blockage of some kind somewhere in your system. -----Dani B. #5003 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/