Haven't seen any of your other posts but I guess you went through the whole aux. fan and fan clutch routine? OTherwise let us know your results and best of luck. Hey guys, my radiator guy assures me that he can fix my running hot problem. Going up Cajon pass at 70mph on a hot(100 or more) day the temp. gauge goes to 3/4. With the air on it gets to 7/8. Were going to put a bigger core with oval shaped tubes between my tanks. $200!! I'll let you know if it works.