noise behind the dash

[shmiddy]

hey guys my car is givin me the absolute S***s latly, and today i noticed a noise coming from behind the dash, sounds like the middle aircon vents, the noise sounds like boiling water and goes for about 30 sec's but not when the car is started only when my acc is on, anyone have a clue to what this could be as its ampin me bigtime thanks guys

[ALLBLITZ-SYDNEY]

Its The aircon . Thevents open and close. Common problem on skylines over 100,000kms

[Slide]

Plastic gears in motors when will they learn?

This is the most common noise under the dash when something is ticking,knocking, making noise.

Arrow points to the motor that fails.

Its a lever that slips on the louver to vent the air to passengers feet.

Just unplug and forget about it.

[ALLBLITZ-SYDNEY]

When you unplug this does it effect the aircon in anyway?

does it mean once unplugged the air wont blow to the feet only? hence every other mode will work fine?

[jezzerrr]

If it sounds like boiling water, not clicking, I'd say it's something to do with the heater element, or aircon possibly? have you replaced the coolant lately? or you may have a leak in your a/c system....

[Slide]

just actually noticed in firts post about boiling bubble sound:p

but to answer your question it will not effect directional airflow in anyway other than the passener side louver not working to the feet.

With your hand just close it because the drivers side one meets up with it anyway so if its turned on and you want the air down it will still make its way across.

This had to be done in my car and every function still works as intended.

[Slide]

If you listen really carefully you can hear the as recirculate under the dash.

Perhaps regassing is required.

Easyiest way to tell where its coming from would be to remove the dash