Quieting Buick Grinding Transmission Noise

Some owners of 2015 Buick Enclave, Regal or LaCrosse vehicles may comment about a growl or grinding noise from the transmission while driving.

Some owners of 2015 Buick Enclave, Regal or LaCrosse vehicles may comment about a growl or grinding noise from the transmission while driving. Disassembly of the transmission may find front differential drive pinion gear bearings or differential carrier bearings that are pitted or spalled.

If a pitted or spalled front differential drive pinion bearing(s) (480), SI#1726803 and/or differential carrier bearing(s) (485, 487), SI # 1726804 are found, contact TAC prior to attempting to remove the distressed bearing(s).

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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.

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