Well I put in new fan clutch..drove around town at slower speeds..did some extended idling when engine warmed up..never went above 210..went to work..no problems...came home from work it went to 220..got off freeway had some stop and go it went to 240..don't know what the problem is.still can't hear fan with new clutch..but at idle its pulling air..(did cigarette test) heard some one talk about air in system..but I always thought it works itself out..don't know how to get it out if that's the problem..