Coolant lines for rear heater

[Kawazar]

I just found a small lead in one of my coolant lines going to the rear heater. I assume they are costly and only a dealer part. Has anyone cut the bad part of the line out and replaced with heater hose and clamped it?

[pnewcomb1]

I did just that with a '90 suburban I had. The problem is that you are going to find more of those leaks in the near future. In my instance the corrosion that caused the initial leak was rather widespread. A catostrophic loss of coolant in rush hour, right at the exit from a parking ramp in downtown Minneapolis was to say the least not a good experience.

[Kawazar]

That is what I was afraid of. I might just price the lines and do a temp. fix for now.

[knipknup]

This is on my '95 gmc suburban K1500:
I pulled into the garage tonight and heard a hissing coming from the rear passenger side tire well. There was a bit of coolant pooling up there (maybe a teaspoon). I did not see any coolant dripping but it was on the frame and the ground. I am pretty sure it was not my tire leaking but seemed to be air pressure being relieved from somewhere in that area. The sound was strongest at the top dead center of the tire. Above this area in the wheel well are two metal lines. Are these coolant lines for the rear A/C? I recently added orange engine coolant but this fluid was green. Could this be freon? Does engine coolant run through lines to the rear of the vehicle?

Thanks for any help.

[brcidd]

That would be your a/c line leaking- hissing out all your 134a refrigerant- the green is the dye in the oil...