Got a problem that I first noted yesterday. I can hear a noise like a humming sound. Sound lasts about 1-2 sec, is mid pitched and has a rising pitch near the end. By end of day it was repeating every 1-3 mins. Noise also sounds like it is coming from a can or other sim item. Noise seems to come from underneath the dash on the right side. Noise seems to be associated with the ventilation system as I don't hear the noise if I have vent/AC off.
My first impression/guess is a vac operated solenoid. Haven't had time to take a close look yet.
Anyone ever experience something like this?
Mickey