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Rattle Noise from Under IP, Underhood, Under Vehicle, Heat Shield Rattle (Install Hose Clamp Around Heat Shield)

Subject:Rattle Noise from Under IP, Underhood, Under Vehicle, Heat Shield Rattle (Install Hose Clamp Around Heat Shield)

Models:2007-2008 Chevrolet Colorado
2007-2008 GMC Canyon
2007-2008 HUMMER H3



This bulletin is being revised to remove the engine RPO information. Please discard Corporate Bulletin Number 08-06-05-003 (Section 06 -- Engine/Propulsion System).


Condition

Some customers may comment on a rattle noise from under the IP, hood or vehicle, which may be difficult to locate.

Cause


Object Number: 2127198  Size: SH

The heat shield located just above the catalytic converter may be the cause. The shield has a metal strap on the rear (lower) (2) side of the shield and a tack weld on the front (upper) (1) part of the shield. The front weld may be broken and the front lower edges of the shield may rattle against the exhaust pipe.

Correction

Technicians are to add a clamp, (1) P/N 10186112, or any other hose clamp with an approximate diameter of 88 mm (3 ½ in), around the depressed section of the shield at the location of the front weld.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

L9717*

Install Hose Clamp

0.3 hr

*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.