Feb 6, 2009 #2 M MH Member Jul 9, 2008 39 1 8 f150 supercrew 4x4 4.3l v8 the heat seems to get cold at lower rpms and hotter at higher rpms. i have coolant in the overflow tank, i havent checked the actual radiator, but its not running hot. what should i do? let me know if you need more info
f150 supercrew 4x4 4.3l v8 the heat seems to get cold at lower rpms and hotter at higher rpms. i have coolant in the overflow tank, i havent checked the actual radiator, but its not running hot. what should i do? let me know if you need more info