[tempfixit]

Thanks wiswind and usstitanic,

wiswind I will check out all of yoiur suggestions, I forgot about the intake manifold runners.

usstitanic, I have looked at the sticky you refer too. Unless I am misunderstanding the blend door actuator comtrols the hot and cold air correct. The heat works fine,
the problem I have is the heat only comes out of the vents not the defroster or any floor passages. The heat does not come out of the defroster when so directed on the control switch. I thinking either a bad vacuum leak or the switch is faulty.
thoughts

thanks