Luke warm heat 2000 expedition, Blend door seems to be working, Water pump OK, ??
I verified the blend door was working by cutting out the panel behind the glove box and drilling a 3/4" hole into the box and I can look in with my MAG light and see the door opening and closing when I turn the temp up or down.
All the heater hoses seem to be hot. With an infared temp gun they are 130-150 at the surface of the metal T's, So I would say the heater core is getting hot water, I heard the Water pump may have been rusted or coroeded so I bought a new one and pulled the old only to fine it looked just as good as my new one so now what??? What else could it be.
The fluid levels were good the blend door and actuator work the water pump is good, it doesn't overheat, I just get luke warm to no heat in the front or rear of my 2000 eddie baurer expedition with climate control.