2002montana/no heat, just cool air in rear

[montana2002]

When I turn on the rear control for the heat in the rear of the van , cool air comes out. I checked the overhead panel and the temp was to the right for heat, all controls work, except I am not getting heat when switched over to the rear setting, what could be the problem?

[pvisser]

First check your coolant level.
Next check hoses going to rear, is one hot or warm part of the way?
Then flush it, could very well be an air lock.

Just my 2 cents

[1Bradymichael]

"When I turn on the rear control for the heat in the rear of the van , cool air comes out. I checked the overhead panel and the temp was to the right for heat, all controls work, except I am not getting heat when switched over to the rear setting, what could be the problem?"

I am pretty sure your van will have a aux. coolant pump for the rear heat. It is located just above the air cleaner housing. I wonder maybe if this was not working if it would affect your heating?