Ford Repair: radiator, cardboard sheet, hose clamps

Question
what causes the antifreeze to go low in the radiator. the hose's are fine.

Answer
Many reasons, one of which a small leak in the radiators.  Place a cardboard sheet under the car overnight and look for residue. Another, is a leaking head gasket.  Look for white smoke from the exhaust after the car is warmed-up.  Another, a leaking vent radiator bottle. Inspect it to insure its integrity. Anthor, is loose and/or leaking hose clamps.  Inspect all hose clamps in/out the radiator.  These are few, but the most commons problems.