3400 coolant problems...again
Hey everyone. My mother has a 99 Montana. 13 months ago, both gaskets, two hoses, water pump, and thermostat were replaced. Now the van is overheating again. I haven't had a chance to look at it myself because I'm currently stationed in Germany.
I had her bring it to a GM dealership to have the work done. They replaced the radiator. The dealership claims they let the van run for 2 hours with no problems after they installed the new radiator. When my mother went to pick it up (after I paid $589 for the new radiator), she went 5 miles down the road and ALL of the symptoms came back. The temp gauge will shoot up, coolant light will come on, and there's no heat. This is the same thing that happened a year ago.
Rumor has it that in these vehicles, the heater core could cause this problem. Does anyone have any advice on this for me?