It could be a stuck thermostat. However your statement that using the A/C switch to turn on the fans brought the temperature down makes me doubt that. With a stuck thermostat and very little flow to through the system, the otterstat couldn't get enough hot water flow to activate the fans, but if that was the case activating the fans wouldn't do much to bring down the engine temp anyway. Gary IN2TIME 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/