I have a 1997 ford f150, when i pour antifreeze in the coolant resovoir it leaks out the rear of the engine what could it be.
Could be the block is cracked. Or you have a rusted freeze plug.
If it leaks out all the time, with engine off and radiator cap off, it could be as BohoMark indicated. Also check heater core connections and hoses.
In to the reservoir and not the radiator? The reservoir is cracked or broken
Looking for a Used F-150 in your area?
CarGurus has 210,391 nationwide F-150 listings starting at $1,300.
Search Ford F-150 Questions
Ford F-150 Experts