3800 Replace COupler = Still Same Noise

[itlnrob]

I'm hearing a rattle sound near the intake part of the car at idle. The second the gas is hit it goes away. What the hell could this be. It is driving me insane.

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[imported_Ron Vogel]

Try dissconecting the SC belt and running it. see if the sound goes away. Something similar happened with Lee's car, and a gaggle of us couldn't finger it out. It could also possiby be one of the idlers.

 

[Dream]

Agree with Ron.....it could be an idler.....

 

[gtphale]

Harmonic balancer is a good guess.

 

[itlnrob]

how hard is the install on an idler, or should i take it in to the shop?

 

[phat_ridegt]

idler is a piece of cake...but take the blower belt off and see if the noise goes away, if it does i would start there

 

[itlnrob]

Originally posted by phat_ridegt@Feb 19 2006, 03:02 PM
idler is a piece of cake...but take the blower belt off and see if the noise goes away, if it does i would start there

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why would that thing make noise? like what is the science behind it?

 

[EmersonHart13]

My brothers idler seized and melted, including the belt!

John

 

[SaturdaysGS]

Originally posted by emersonhart13@Feb 19 2006, 03:42 PM
My brothers idler seized and melted, including the belt!

John

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Hah, same thing happened to me, the car started to sound like a UFO, then the superchargers boost was.. well.. non existant. New pulley, new belt.

edited: I wasnt getting a knocking sound though, just a hellacious squeak. I do get a "rattling sound" from some little black device above/to the back of the supercharger. Atleast I used to, I dont remember if I do now.

 

[itlnrob]

I don't think its my tensioner/idler

it sounds like its coming from the intake area either underneath the thrasher, or the intake coupler.

If i can't find the noise, I will ahve someone program my PCM up about 150 RPM's to make the noise non existant

 

[imported_Ron Vogel]

Did you try listening with the screwdriver trick to isolate the noise?

 

[Sinister Drag Designs]

If i can't find the noise, I will ahve someone program my PCM up about 150 RPM's to make the noise non existant,

i think this will only mask a prob and you will be wasting gas at idle to solve a most likely simple prob. have someone look at it for you ....ron or bumpin or mike k

 

[itlnrob]

Originally posted by Ron Vogel@Feb 19 2006, 05:59 PM
Did you try listening with the screwdriver trick to isolate the noise?

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i dunno the trick

can i swing by sometime this week for ya to hear it? Last time you were in my car it kinda made it, but now its gotten worse. You said it sounded like a lawnmower, i dunno if u remember though.