Water leak coming out back or side of motor

Water pump

The water pump is in the front of the engine. You say your leak is in the back and side of the engine. Sounds like a heater hose, or heater climate control valve, also check the heater core, depending on where it is located, normally on that it leaks inside the vehicle on the passenger side.

Also a bad head gasket can cause leaking down the side of the engine.

if its a mwm 4.2 litre motor its the water pump would like to find out where I can get a repair kit pumps range from 850 to 650