OK guys this is gonna be hard to explain so bear with me....


When I'm driving slower about (30-45) and just barely push the gas the rpms go up to around 2000 and then drop to 1500 and the engine starts making a wierd noise. It's kinda like a old V8 clicky sound. The car keeps making power and speeding up though. If I step on the gas just a little more the RPMs jump and it sounds fine again.

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2005 Loaded GP GTP Blue-Green Crystal (BLEEN)
About 91K miles


Mods and upgrades.....

Autolite 606 Copper Plugs, Autolite Wires, new PCV (66K)
New front and rear Ceramic brakes and brakes bled. (69K)
New pass. side wheel hub (88K)
New Dr. side wheels hub (91K)

Does it have a fluttering sound just as you basrely press down on the accelerator? Can you locate the location of the noise in the engine compartment? and does it only occur when in drive? or when you are parked revving the engine?

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2009 G8 GT - Roto-Fab CAI, Cortex 93 Octane Tune......next up....suspension.

I can't tell where it's coming from, it only does it when I'm driving. Though I hear the sound almost all the time. It's really loud and acts wierd like above when I'm driving slow.

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2005 Loaded GP GTP Blue-Green Crystal (BLEEN)
About 91K miles


Mods and upgrades.....

Autolite 606 Copper Plugs, Autolite Wires, new PCV (66K)
New front and rear Ceramic brakes and brakes bled. (69K)
New pass. side wheel hub (88K)
New Dr. side wheels hub (91K)

it may be suspension related i know mine makes a creek noise when i take off or hit bumps or ride on uneven surfaces could be a strut mount bearings

It sounds like valvetrain to me. Does the clicking noise have a rotating-like feel to it like a gattling gun, for example?

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2004 Pontiac Grand Prix GTP Competition Group

Pretty sure its NOT suspension.

Almost positive its the engine or trans making the sound.

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2005 Loaded GP GTP Blue-Green Crystal (BLEEN)
About 91K miles


Mods and upgrades.....

Autolite 606 Copper Plugs, Autolite Wires, new PCV (66K)
New front and rear Ceramic brakes and brakes bled. (69K)
New pass. side wheel hub (88K)
New Dr. side wheels hub (91K)

theres a couple of us experiencing that noise. I first noticed it when i put my intake in, then it got louder after the header and exhaust install. i think its normal? maybe a lifter?

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2004 GTP COMP G
K&N Intake, MPS, 3.5, Overkill PCM, SLP Powerflo, GTX Tips, SLP Headers, SLP Cat, 180 tstat, MSD Coils
Aeroforce Interceptor, Tints, 17" Elbrus Wheels

Supercharger noise reacting to difference when TCC is engaged?

My 05 did it, I thought that's what it was.... seemed normal

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Ok I did notice it after I put on my fwi. Maybe it is something normal but just not noticeable with the stock filter setup.

I was thinking about putting it back on to see.
But why the drop in RPMs?

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2005 Loaded GP GTP Blue-Green Crystal (BLEEN)
About 91K miles


Mods and upgrades.....

Autolite 606 Copper Plugs, Autolite Wires, new PCV (66K)
New front and rear Ceramic brakes and brakes bled. (69K)
New pass. side wheel hub (88K)
New Dr. side wheels hub (91K)

TCC lockup!

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Hello again,

Go and look at a few videos that a few of us took on our vehicles highlighting some "engine noise" after CAI or FWI install. (see link below). In my video, you can hear some "fluttering" before the SC really kicks in and another one sounds like "rocks" . Blackwood's video sound like pure SC power.

See if any of those sounds like what you are experiencing.

Hope it helps.

supercharged-3800-l67-l32-f16/

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2009 G8 GT - Roto-Fab CAI, Cortex 93 Octane Tune......next up....suspension.

Well I put the stock airbox and filter back on and WOW what a differance in sound. I forgot how loud the FWI was. With the stock box there is very little sound to even tell its suppercharged.

Anyway, with the stock box on, the sound dissapeared so thats good/normal FWI sound I guess. But the rpm drop is still there just not as bad of a drop and not as long as it was with the FWI. I guess this is normal too so when I put the FWI back on I'll see if it happens again.

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2005 Loaded GP GTP Blue-Green Crystal (BLEEN)
About 91K miles


Mods and upgrades.....

Autolite 606 Copper Plugs, Autolite Wires, new PCV (66K)
New front and rear Ceramic brakes and brakes bled. (69K)
New pass. side wheel hub (88K)
New Dr. side wheels hub (91K)

That is normal, it is the torque converter locking up. The stock air box is like a muffler is supresses alot of the engine noises, that is why when you put the FWI on you can hear it.

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