0vetteshop

I dont know if this has been posted yet,but it is now an official TSB :yesnod:

Whistle Noise From Intake Manifold/Throttle Body (Replace Intake Manifold) #02-06-01-021
Whistle Noise From Intake Manifold/Throttle Body (Replace Intake Manifold)
2001 Chevrolet Corvette

with 5.7L Engine (VINs G, S -- RPOs LS1, LS6)

Condition
Some owners may comment on a whistle noise coming from either the intake manifold or the throttle body. The noise is most noticeable between 1100 and 2000 RPM.

Cause
This condition may be the result of airflow through the intake manifold.

Correction
Replace the intake manifold with the part listed below. Refer to the Intake Manifold Replacement procedure in the Engine Mechanical - 5.7L sub-section of the Service Manual (SI Document ID #642853).

Parts Information
Part Number
Description
Qty

88894339
Manifold, Intake
1


Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

J0250
Manifold, Intake - Replace
Use Published Labor Time

tomdcarguy

I just got that bulliten 2 days ago... what to do with all those intakes.... :eek:

chuckster

Brick huh? I lived in Brick my whole life..

You work for Pinebelt Chevrolet?

DanC5

Thanks! I hate that whistle. Now I just have to build up the courage to let a dealer tear into my motor. :(

bub

Does it only apply to '01's or to '02's as well? Which VIN #'s are affected.

I too think this may be what I am hearing on my '00 (thinking it was belt noise til I read this).

-CKB

REDGAR

I hear a similar whistle in my 1999, does it apply to that?

scorp508

Silly air! What is it doing in there? :)

StreetShark

I've got that whistle on my 2001... it's funny somone asked if it was supercharged when driving in my car...hehehe!!! But I agree, I'm kinda leary about a dealership tearing into my vette over that whistle noise.

Scott
2001 NBM Corvette Coupe (M6)

georgec114

There's so much chattering goin' on under my hood, that I'm
not sure I can hear a whistle if it was coming from a train. :mad

But like everything else I see on this forum, I WILL
eventually have this problem. Geeezzz. :smash:

...GeorgeC

Mean Green

I'm hoping to get 'em to apply to '00s as well....I'd love a LS6 intake :D

SoCal C5

More power to you if you can convince them to do it for you, but you may be in for an up-hill battle. The problem stems from an unused cavity in the 2001 version of the "LS6" manifold. So, if you do not already have a "LS6" manifold then the bulletin does not really apply. Now given most dealers actual knowledge and competence level :rolleyes: I like your chances for putting one past them. This could be the one case where poor dealer service works to your advantage.




[Modified by SoCal C5, 2:48 PM 6/28/2002]

vetterdstr

Maybe they are gonna recycle them with all the other plastic we throw into the recycle bins!! :lol:

vetterdstr :cheers: