Supercharger Noise – 2009-2015 Cadillac & Chevrolet

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#15-06-01-003A: Supercharger Noise – (Dec 22, 2016)

Subject:	Supercharger Noise
Models:	2009-2014 Cadillac CTS-V
	2012-2015 Chevrolet Camaro
	Equipped with 6.2L Engine (RPO LSA)
Attention:	This Bulletin also applies to any of the above models that may be Export vehicles.

This Bulletin has been revised to add the 2015 Camaro and update the Correction and Warranty information. Please discard Corporate Bulletin Number 15-06-01-003.

Condition

Some customers may comment on one or more of the following conditions:

2009-2014 Model Years

• Customers may experience a rattling or knocking noise at mid-to-high mileage, especially prominent at idle.
• Customers may experience a screeching noise at mid-to-high mileage, usually when cold but not exclusively.

2014 and Newer Model Years

• Customers may experience a buzz noise (similar to a heat shield buzz) at a narrow RPM band somewhere between 700–1300 RPM. This noise may be referred to as launch buzz, accessory drive belt resonance.

All Model Years

• A light to moderate rattling noise at idle that sounds like marbles in the supercharger, but goes away when engine speed is increased to about 1200 RPM, is normal. This noise does not indicate that there is any problem with the supercharger or that any parts are damaged.

Cause

This may be caused by contamination of the lubricating grease within the supercharger that may cause the bearing to make noise. If this condition exists, and is left unaddressed, the bearing may overheat and cause damage to the supercharger.

Correction

For vehicles that encounter the above concern, follow the correct procedure listed below.

2014 and Newer Model Years

Replace the supercharger front cover. Refer to Supercharger Front Cover Replacement in SI.

2009-2013 Cadillac CTS-V and Chevrolet Camaro (That Have Had A Service Replacement Supercharger Installed After November 2013)

Replace the supercharger front cover. Refer to Supercharger Front Cover Replacement in SI.

Manual Transmission Vehicles The Experience a Flutter or Rattle at Low RPMs

Replace the supercharger front cover. Refer to Supercharger Front Cover Replacement in SI.

Vehicles Built Prior to 2014 (That Have NOT Had A Service Replacement Supercharger Installed After November 2013)

Remove and replace the supercharger. Refer to Supercharger Removal and Supercharger Installation in SI.

Parts Information

Part Number	Description
12613457 12 Reviews General Motors 12613457, Supercharger Gasket Coupe, 6.2L. Sedan, 6.2L. With supercharged. 6.2L with supercharger. $51.97 Buy on Amazon Price incl. tax, excl. shipping	GASKET-CHRG AIR CLR HSG
12612467 Genuine GM Insulator Part# 12612467 Sedan, 6.2L. Coupe, 6.2L. 6.2L with supercharger. $38.79 Buy on Amazon Price incl. tax, excl. shipping	INSULATOR-CHRG AIR CLR LWR
19180613 GM Genuine Parts 19180613 Intake Manifold Gasket Kit with Rivet Helps help prevent dirt and debris from entering the valve train for optimal performance Made of high-temperature resistant material for durability Contains necessary parts to replace your vehicle’s intake manifold gasket set GM-recommended replacement part for your GM vehicle’s original factory component Offering the quality, reliability, and durability of GM OE $57.78 Buy on Amazon Price incl. tax, excl. shipping	GASKET KIT, INT MANIF
12576549 GM Genuine Parts 217-1618 (12576549) Fuel Injection Throttle Body Seal Package Weight: 0.05 Lb. Product Type: Valve Package Quantity: 1 Package Dimensions: 14.986Cm (L) X 13.208Cm (W) X 1.524Cm (H) $16.54 Buy on Amazon Price incl. tax, excl. shipping	SEAL, THROT BODY
12670278	SUPERCHARGER KIT
12670289	COVER-SPCHG FRT (KIT)
12346290 No products found.	COOLANT, ENGINE – US
10953464	COOLANT, ENGINE – CA

Warranty Information

For vehicles repaired under warranty, use:

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