I have a 1984 Cadillac Fleetwood Brougham.
So i have no heat.
The blower motor works.
The cold air flows from the defrost outlet.
The vacuum system looks like good.
When I change A/C and heat position, the mode door
open and close.
Both hoses from the heater core is hot.
Heater water valve is good.
It is interesting the air only flows from the defrost intake bottom of
windshield and to the legs.
No air comes from other intakes? Why??
Only cold air flows to the car...:-((
What is the problem?