I didnt check the coolant for the last 5000 miles but Im sure even in Fl heat is not normal to have an empty reserve .

problem is I can find the leak . Oil engine and tranny is good so coolant is not going to another pan

Is there any common issue to look at (pump,radiator,heater,)

btw the truck didnt overheat , temp has been little less than 200 .
I realized the lack of antifreeze due to a mantenience inspection

Thx for any inputs

 

I don't know of anything particularly common, id guess the radiator has a crack in one of its plastic tanks or a hose has a crack, maybe a slow leak that you don't see on the ground...slow for now that is, you don't see any wetness anywhere? look near water pump too

 

Did a double deep check to find a small leak in the water pump .
looks like a DIY job . Will start working on it next week

harder part will be to do the work under Fl sun with 100+ °

 

Water pump gasket is probably whats leaking. Easy enough to fix.

 

Water pump was ... replaced also the termostate and Ac belt