1995 Ford F-450

Engine Cooling problem
1995 Ford F-450 6 cyl Four Wheel Drive Automatic 155, 00 miles

What are the probable causes of a leak of antifreeze? I fill the resevoir and within a week it's empty. I'm pretty sure the resevoir is ok. What else could it be?
June 11, 2010.

Busted engine block, cracked head gasket and/or head, faulty radiator hose(s), failing water pump, busted radiator etc. Check engine oil to see if it looks like coolant is mixing into it. Also check for visible signs of leaks i.E. Smoking out exhaust or wet spots in engine compartment.

Jun 11, 2010.