First of all thanks for having this great forum,anyway hope I dont make this too long, I have a 98 GT in the past it was slowly losing coolant and the wife could here a gurgeling sound from the heater core,and the low coolant light was coming on,anyway I topped off the coolant drove around for couple miles to circulate the system,a couple days passed and the coolant was way down again 1/2 gal maybe.. I should mention I have not noticed any coolant on the garage floor but I could smell it when she would come home an park..anyway topped the coolant off again yesterday when she gets home the engine is steaming I popped the hood and can hear a hissing down near the water pump and can see coolant pooled on a lower cross member,checked the oil it's ok and the engine wasn't knocking or missing,It appears the upper elbow is ok from what i can see, is the waterpump toast if so how tough is it to replace..