RSD559ExplorerMay 30, 2017F-150 radiatorsLast trip, I noticed my 2012 F150 3.5 ecoboost started to heat up about 5 minutes into a hard climb. Slowed to 60mph and it went back to normal. So I'm looking at having the radiator hot tanked and ...Show More
Turtle_n_PeepsExplorerMay 31, 2017The Eco's have a small duty cycle in hot weather.Any time you supercharge an engine the heat load goes out of sight. At full boost your engine thinks it's a 7 liter not a 3.5 L.You can overload these engines pretty quickly in hot weather with the air on and pulling a pretty heavy load.What fuel were you burning? (yes, it does make a difference)