well i went ahead and did the fan clutch test and when i opened the hood the fan was just about to stop spinning, in other words "its very loose". would a bad fan clutch cause it to over heat at freeway speeds or just in stop and go traffic? i found some beige build up inside the t-stat housing against the pipe. it sort of crumbled when i gave it pressure. now am thinking it might be the radiator thats clog. i also tested the t-stat (factory) in hot water and it worked good.

anybody know of a good affordable place to buy a radiator and/or fan clutch? . i heard you cant have these cleaned out or rebuild (both).