Installed new crate GM replacement 350 engine. It will run hot after initial warm up but after turning off and setting a few mintues it will return to normal temp and stay there city or open road until allowed to cool completely down. Then it will repeat overheating. Replaced themostat 3 times, Rad cap, sending unit, water pump and hoses. Also flush system (at home). Had simular problem before engine replacement but not the same.
Wednesday, October 31st, 2012 AT 10:56 PM