Car: 1992 Dodge Dynasty, 3.3L, A604, 160,000 miles.
Just noticed today that no matter which button I push on the vent control,
heat only comes from the defroster outlet. I no longer hear the vacuum being
relieved like I used to when I changed the settings, nor do I hear the
vents opening / closing.
Does anyone know of a common point of failure that might cause this? It
could give me a starting point before I go and troubleshoot each portion in
trying to track down the cause.