Cadillac Turbocharged Engine Rattles

This bulletin applies to 2014-2016 Cadillac CTS-V Sport and XTS vehicles equipped with the LF3 Twin Turbocharged engine. A rattle noise at the turbocharger may be evident when cold, at idle. There is a revised part available for this concern.

The new part has a revised spring for the wastegate to limit movement when cold. The new part numbers are 12666538 (LH) and 12666539 (RH) for CTS-V Sport and 12666540 (both RH and LH) for the XTS.

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Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Editor

Mike received a BA degree from Youngstown State University in English Literature with a minor in Journalism in 1975.