Phils wrote:
When I worked at an auto parts store, we had a similar Chevy with overheating problems. The owner was a very qualified mechanic (and a supervisor of many). He'd tried everything, like you.
I'll keep this short, rather than the two pages I COULD write detailing all the things he tried and the results of each.
Bottom line: when he replaced the fan clutch WITH A FACTORY OEM PART, his overheating problem was fixed. (He'd had at least four new aftermarket fan clutches from different brands).
Phil
Same is true for Dodge trucks, the aftermarket just doesn't work right.