Weird sound behind dash/firewall - 3000GT/Stealth International Message Center

Flr · 07-07-2008, 04:44 PM

Ok. My problem is following:

When starting up an engine everything is alright, but as soon as I rev around 1800 and over there is some fast repeating tapping sound behind dash/firewall. First I thought it was coming from gauge cluster, but when I tried the revs without cluster the noise still seemed to come from same place without any changes.

Before the noise started I installed my boostgauge by making a way to engine through the rubber sealed hole above pedals and used T-pipe to get boost reading from the hose coming from back of the plenum.

The sound started right after the installing with first start.. I just can`t seem to realize if it`s just coinsidence or related to my boostgauge installation.

Any ideas?

jandoaudio · 07-07-2008, 04:54 PM

search for woodpecker behind the firewall

Flr · 07-07-2008, 05:29 PM

Searched, but no luck.

any more ideas with no birds related?

Alt0id · 07-07-2008, 05:30 PM

Lifter Tick?

Flr · 07-07-2008, 05:33 PM

No no no.. this sound is more rapid than lifter tick. I`Ve seen some threads with issues because of boost solenoid, lifter ticks etc.

But my problem is related only with rpm`s more than 1800 and up... no matter if it`s cold or warm, minutes or hours of driving.. the sound is constant rapid loud clicking and always starts at 1800 rpm and stays the same to the redline.

(bad english, yeayea...)

jandoaudio · 07-07-2008, 05:41 PM

ticking noise coming from firewall area under acceleration

Heres one for a boost control solenoid which is the normal culprit

Your right, woodpecker doesn't bring it up anymore. Don't know where it went, but I was going to suggest the boost control solenoid, if you don't think thats it then I would start searching for ticking or clicking and seeing what other solenoids people have had issues with

If it does it both warm and cold I'm at a loss.

Good luck and let us know what you find!

07-07-2008, 04:44 PM	#1 (permalink)
Flr New User - Please be kind Join Date: May 2008 Trader Rating: (0)	Weird sound behind dash/firewall Ok. My problem is following: When starting up an engine everything is alright, but as soon as I rev around 1800 and over there is some fast repeating tapping sound behind dash/firewall. First I thought it was coming from gauge cluster, but when I tried the revs without cluster the noise still seemed to come from same place without any changes. Before the noise started I installed my boostgauge by making a way to engine through the rubber sealed hole above pedals and used T-pipe to get boost reading from the hose coming from back of the plenum. The sound started right after the installing with first start.. I just can`t seem to realize if it`s just coinsidence or related to my boostgauge installation. Any ideas?

07-07-2008, 04:54 PM	#2 (permalink)
jandoaudio Staying in the Family Join Date: Sep 2001 Location: Bozeman, Montana Drives: 95 RT/TT Trader Rating: (13)	Re: Weird sound behind dash/firewall search for woodpecker behind the firewall __________________ 92 VR4 Blacked out with a 98 conversion dr900's Fully forged 3.1L Stage 3 Heads 98 Jeep TJ 37's Locked with all the toys Cheap, Fast, Reliable.... You can only have two

07-07-2008, 05:29 PM	#3 (permalink)
Flr New User - Please be kind Join Date: May 2008 Trader Rating: (0)	Re: Weird sound behind dash/firewall Searched, but no luck. any more ideas with no birds related?

07-07-2008, 05:30 PM	#4 (permalink)
Alt0id Paid Member Join Date: Jan 2008 Location: Rockford, Illinois Drives: '94 3000GT SL Trader Rating: (1)	Re: Weird sound behind dash/firewall Lifter Tick? __________________ Need new capacitors for your ECU? http://www.3si.org/forum/f4/brand-ne...6/#post4971676

07-07-2008, 05:33 PM	#5 (permalink)
Flr New User - Please be kind Join Date: May 2008 Trader Rating: (0)	Re: Weird sound behind dash/firewall No no no.. this sound is more rapid than lifter tick. I`Ve seen some threads with issues because of boost solenoid, lifter ticks etc. But my problem is related only with rpm`s more than 1800 and up... no matter if it`s cold or warm, minutes or hours of driving.. the sound is constant rapid loud clicking and always starts at 1800 rpm and stays the same to the redline. (bad english, yeayea...)

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07-07-2008, 05:41 PM	#6 (permalink)
jandoaudio Staying in the Family Join Date: Sep 2001 Location: Bozeman, Montana Drives: 95 RT/TT Trader Rating: (13)	Re: Weird sound behind dash/firewall ticking noise coming from firewall area under acceleration Heres one for a boost control solenoid which is the normal culprit Your right, woodpecker doesn't bring it up anymore. Don't know where it went, but I was going to suggest the boost control solenoid, if you don't think thats it then I would start searching for ticking or clicking and seeing what other solenoids people have had issues with If it does it both warm and cold I'm at a loss. Good luck and let us know what you find!