heater/air control unit making noise when the ignition is off
11-10-2005, 01:54 PM
#1
Burning Brakes
Thread Starter
heater/air control unit making noise when the ignition is off
and key is out. i pulled it out.... it's not the little fan on the back. it's inside the unit. what's in there.... or what could it be?
11-10-2005, 02:25 PM
#2
Burning Brakes
Join Date: Apr 2004
Location: Canberra
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Does it only do it when you first turn off the car, or will ti still make th enoise a few hours later ?
If youe HVAC is vacuum controlled, it could be the vacuum leaking down.
If youe HVAC is vacuum controlled, it could be the vacuum leaking down.
11-10-2005, 06:58 PM
#3
Burning Brakes
Thread Starter
i'm not sure. i heard it right after i shut down. i removed the unit to try and see what it was. i un hooked the bottom connector and it stopped. then i unhooked the top connector and removed the unit. i debated taking it apart but opted to re-install it. when i did, the noise didn't return. i haven't driven the car since to see if it repeats. anyway i wonder what's in there that could be making a noise?
