When I run the AC the truck Temp will climb and overheat

 

What year and engine? Does the fan get louder at all?

 

2003 v6 fan never gets loud that I've noticed

 

Should be an electric fan that comes on at 210 degrees or with AC, as well as a clutch fan which should lock up to water pump speed somewhere around the same 210-220 window.

 

I would suspect either a clogged radiator or worn out water pump or both.

It may be time for a cooling system overhaul new rad, pump hoses and stat its worth it if you have the 3.7 that engine doesn't take overheating well it leads to engine failure.

A new clutch fan also