On a 1989 Ford F150 with a 302 where would a coolant leak be coming from when it appears behind the water pump?
It's the block heater. I had the same problem.
Coolant leak coming from behind the power steering pump could it be freeze plugs you have changed water pump and all hoses and it is not coming from those?
usually coolant leaks come from bad gaskets... or a bad water pump.. i would say drain the system and run water through the radiator (do NOT drive with water in the radiator, your engine will surely overheat!) and see if you can spot where the coolant is coming from... if it is coming from the engine block then you might have bad gaskets.. if not then it's the water pump.