whats leaking antifreeze in my 1991 ford ranger?

sounds like a heater core and in the ranger it is very easy to replace.

heater core. here's the funny part i had one leaking in my 1990 for a few years had bought the part and put off changing it for atleast three years finally got tired of smelling it and decided to tackle what i thought would be a huge undertaking,(like most heater cores) i got out the book and found all i had to do was remove 4 screws on the heater box and 2 hose clamps. real easy took less than 30 minutes.

It sounds to me like your heater core has gone bad. It ofter happens to cars as they get older. I've had several cars that have had that occur and both times it was the heater core. Does it drip antifreeze onto the floorboard. that is almost a dead giveaway. The fogging windows and strong antifreeze scent are also indications that has what happened.

Your heater core is bad. Replace it with a factory Ford core or one from NAPA. Do not use the brands sold buy Autozone or Advance Auto Parts. Fitment and quality on those brands are poor.

go have a stress try completed they'll build up the stress and that i guess you will discover or see a pin hollow leak some the place. I incredibly have discovered them in some strange places if the motor vehicle is working good probobley you haven't any longer blown a head gasket yet you gotta discover the leak reason sometime it may desire to over warmth to the quantity of blowing it or different loopy issues could desire to happen

your heater core is probably leaking, or maybe you might be lucky and it's only a heater hose going to the heater core

you have a heater core problem