2001 sierra 5.3L z71... after body lift install the truck runs over 210*... almost to the next halfway mark between 210 and red when cruising down the interstate and if the a/c is turned on it almost reaches the red? the shroud relocation brakets were used so the shroud is on there, he even added a 16" electric fan and it didnt help it one bit? got any ideas? he had no problems before bodylift install...