if you live on dirt roads take and power wash the **** out of your radiator because that will condridict on your readings did you put a high temp rtb paste on your thermostat? also if you have air in your ac system that could also contridict it also i think but take and get a vaccume pulled on ;your system and new freeon put in it. maybe flush out your raidiator. drain the over flow and buy the stuff at walmart and run it through your raidiator and follow the directions on the bottle. after that take and put all new fluids and antifreez in it.... heck ya it rainig now on the big red yea gona get out of the drout thank you god you are a great one