oups59

I have a funny TIC-TIC sound near the center Console under the radio under accelaration (any kind - smooth or hard) when the car is cold. As soon as it become warm, the sound is gone !!!

It sounds like a relay but there is no relays in there execpt for seat belt/chime relay and it is working fine.

Any ideas?

S4 1987 AT

WallyP

HVAC vacuum leak?

IcemanG17

Sounds like HVAC....have you tried different settings on the climate control to see if it effects the noise?

oups59

No. I will try this afternoon.

Thanks

oups59

Stupid question... What is HVAC ?

bwebb77

Air conditioning/heating system

deliriousga

Heating Ventilation and Air Conditioning

oups59

Well, I learn everyday.

dcmelik

If you're not entirely sure it is coming from the console (and it sounds like you are) the other thing it might be is the counter for the oxygen sensor under the cover just right of the passenger seat. Some folks recommend disconnecting the counter-- it produces a rotational "click" noise proportional to wheel (engine?) speed when bad. Some people suggest disconnecting it to see if the sound goes away.

mpesik

After the TICK is there a tock? Could be your clock.

oups59

The sound came back last week-end. But this time, the cruise control disengages under acceleration witch say that it is, probably, vacuum related.

Where should I look first?

Randy V

Let me guess - you haven't read thru the "New Visitor?...FAQ" topic posted above.