hey im haven issues on finding this leak so i need some thought on were it could be at i just put in a 2 row radiator and i replaced the thermostat housing with the new sensor and i also replaced all the hoses....im thinking it could possibly be the water pump or could it be something else thanks in advance for yalls help

 

I cracked my housing when putting a t/sat in one time might look at it real close

 

I went through the same problem. When you replace your radiator, (I learned through tons of frustration), replace the hoses, cap and most radiator related parts. I thought my hoses were good, but ended up with a tiny pinhole in one of the hoses and it was causing the Cherokee to overheat. Duct tape got me home and able to replace the hose the next day. Hope this helps!

 

well i have all ready replaced the hoses and got a brand new thermostat housing it seems like it its coming from the under sided but like i said i have replaced everything but the water pump.

 

Did you seat the clamps on the hoses properly? Did you torque the thermostat housing correctly with a good gasket?

 

Dont forget your heater control valve, dont think thats it but you never know, things fails at the damndest times. Cheap plastic part that can get cracks pretty easily...as I have found out.