mobilemech
Full Access Member
the temps between the top and bottom tank is puzzling, as posted that's 120 degree drop from top to bottom, that would be the most efficient radiator I've ever heard of. 30 degree drops are really good but 120, I think there is an error in the temp reading or where it is being measured. I would also lead in the direction of the thermostat by what info you've given, as icanfixall said, can you post the part # or the package. these trucks run at thermostat temp all the time, untill loaded or towing.
