uderstand that tuffty , mine was showing 100 deg on diagnostic and showing 90 on the temp gauge , thats not the prob , prob is mine is showing 100 on temp gauge before the fan cuts in and as sandip says they dont warp they just give in, so im thinking sensors need to be changed somewhere in the chain , id rather throw a few quid at the sensors than have a cracked head , I dont think the temp should rise so high on the temp gauge b4 the fan cuts in , i heard there are 3 temp sensors but dunno how they control the fan cut in im sure ive got a dodjie temp sensor somewhere as id expect the fan to cut in at most 95deg , as most folks reckon the needle shouldnt budge from 90 ??