Can you hear the damper doors moving when you move the levers? Cable end may have fallen off. No vacuum to move doors. Something fell into heater or defroster ducts. You didn't screw anything to the heater box? I thought the heater box was a great place to mount the amp for my stereo, Screw kept door from moving. If vacuum driven, is there vacuum to the diaphram? Does diaphram leak? good luck. Troy

At 01:55 PM 11/11/2006, you wrote:

I have a 1977 delta 88 . My Heater is blowing cold air out the floor vent of and little to no air out the other vents. My heater hose that goes to the heater core becomes hot but i still dont get any heated air. My core hasnt leaked and im confused on what the problem could be. Can anyone help me out.. Thankx in advance.
                                              - Mark ( Delta lover)




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