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View Full Version : tapping sound inside commodore


DenZel
20-09-2009, 08:18 PM
vy ss commodore.

started the car up tonight to an odd knocking/tapping sound coming from behind the dash - constant sound thats quite annoying (was fine all day today)

if i turn the car off and put back to igintion will make about 4 or 5 taps then be silent, but once flick her all the way over again to start it up back comes up the sound


wtf is it?
POTTER
20-09-2009, 08:22 PM
put ur pipe down it will go away
jokes
have u checked all your relays?
RICEY
20-09-2009, 08:22 PM
Is the a/c fan on or off? Like the fan in the car that blows thru the vents..
RICEY
20-09-2009, 08:24 PM
And can you pinpoint which part of dash its coming from...
dmwill
20-09-2009, 08:28 PM
Your stereo is not loud enough - try turning it up.

Best solution to non-detrimental noises.
mr_mike
20-09-2009, 08:29 PM
http://2.bp.blogspot.com/_NPeIdlHaoaQ/SBdLBCngKWI/AAAAAAAABrA/p6qQ-tLD4mM/s320/300px-classic-time-bomb-tm.jpg
Joe
20-09-2009, 08:33 PM
You forgot to take your Thai rent-a-bride out of the boot.
DenZel
20-09-2009, 08:39 PM
fan all off

sounds like its coming from between the dash and dvd player.

sounds like someone is knocking the plastic from the inside lol.
evil1
20-09-2009, 08:41 PM
ghost
Nemi
20-09-2009, 09:19 PM
maybe its swayze ?
evil.e30
20-09-2009, 09:29 PM
lemmywinks?
http://mcneillr.files.wordpress.com/2008/04/lemmiwinks.jpg
Lump
20-09-2009, 09:45 PM
hvac servo?
shane
20-09-2009, 09:58 PM
Could it be the aerial trying to go up? They make a horrible knocking sound when there fucked and can sound like its coming from that general direction.
DenZel
20-09-2009, 10:06 PM
aerial works fine

sounds like its coming from the pedal area/where your left knee sits but behind the dash on closer inspection, starts tapping as soon i fire it up.
Lump
20-09-2009, 10:44 PM
check out the servos, had the same issue with another car
Milhouse
21-09-2009, 08:31 AM
have a similar problem with my r33

its the heater box trying to drive, makes about 10 click noises when you first start the car then its fine.

pull the glovebox out and have a listen prehaps ?
DenZel
21-09-2009, 10:32 AM
turned the fan on/off and the a/c on and off a couple of times and stopped making the noise....

ill get it checked out next time goes in for a service.
evilvl
21-09-2009, 11:38 AM
Maybe stupid question but you don't have leaves and crap caught up inside your vents do you?
mitchy
21-09-2009, 11:41 AM
have a similar problem with my r33

its the heater box trying to drive, makes about 10 click noises when you first start the car then its fine.

pull the glovebox out and have a listen prehaps ?

my 33 was the same, they strip some teeth of one of the cogs that opens/shuts the heater flap i believe...
Lump
21-09-2009, 09:28 PM
yep plastic gears in the servo, had one fuck up in a car i just bought, dealer price for a new 1 was about $470 lol
Damo80
23-09-2009, 09:05 PM
Maybe stupid question but you don't have leaves and crap caught up inside your vents do you?

I'm gonna go with leaves and crap...
next time you hear the noise Jesse, just crank the fan on full for a while till the noise goes away. Most likely its sucked some crud in from outside

Damo
Lump
23-09-2009, 09:18 PM
leaves in a fan does not make a 'knocking/tapping' sound imo
Damo80
24-09-2009, 07:51 AM
and a faulty part doesnt often fix itself as in this case..

I guess its a bit hard to diagnose without everyone seeing the car and hearing for themselves..
Lump
24-09-2009, 09:09 AM
just because its stopped doing it for now doesnt mean its fixed itself - gears with stipped teeth can still work to a point
a bit of experience in the exact issues & a grasp of the english language lets mechanics properly diagnose issues all the time, providing the person with the problem gives a good descroption, as he has in this case.