Mazda TSB #01-024-15-3110

2011 Mazda CX-9

CarComplaints.com Seal Of This Might Hurt

TSB Document:

Affected Component: EQUIPMENT ADAPTIVE/MOBILITY

Summary
SOME VEHICLES MAY EXHIBIT AN UNUSUAL RATTLE/BUZZING TYPE NOISE FROM THE PRESILENCER WHEN DRIVING AT APPROXIMATELY 1800 RPM. THE LOWER (REAR-SIDE) OF THE PRE-SILENCER MAY BE THERMALLY DEFORMED DUE TO INSUFFICIENT RIGIDITY (FEWER WELD SPOTS). THE DEFORMED PORTION MAY RESONATE EXHAUST GAS PULSATIONS, WHICH CAUSES NOISE. A REINFORCED PLATE HAS BEEN ADDED TO THE PRE-SILENCER TO INCREASE THE RIGIDITY, THEREBY ELIMINATING DEFORMATION.

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Date Published
DEC 14, 2015
NHTSA TSB #
10105647
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