CTS V6-3.2L VIN N (2003)
Catalytic Converter: Customer Interest
Exhaust System - Rattle/Buzz from Engine Compartment
Bulletin No.: 04-06-05-002
Date: March 10, 2004
TECHNICAL
Subject:
Rattle/Buzz Type Noise From Under Engine Compartment During Acceleration/Deceleration (Replace Catalytic Converter Bracket Assembly)
Models:
2003-2004 Cadillac CTS
Built Prior To VIN Breakpoint 40159439
Condition
Some customers may comment on a rattle/buzz type noise coming from under the engine compartment whenever the vehicle accelerates or decelerates.
Cause
This rattle/buzz type noise may be due to the breaking/cracking of the catalytic converter support bracket at the transmission case attachment points.
Correction
An improved bracket assembly is now available from GMSPO.
Replace the existing catalytic converter bracket assembly with P/N 15143600. Refer to Catalytic Converter Hanger Bracket Replacement in the Engine
Exhaust sub-section of the Service Manual.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
