TSB's

Bad Balancer? Seriously?

This bulletin involves 2015-2017 Cadillac ATS, SRX, CTS, CT6 and XTS vehicles. A snapping or ticking noise at the harmonic balancer may be heard, or sparks may be observed at the balancer.

This condition may be caused by the rubber compound not meeting the specific material design specification that allows for excessive resistance between the center of the hub to the outside ring of the harmonic balancer.

If this is verified, obviously the balancer must be replaced. Hard to believe that in this day and age that we’d face this type of issue.

HARMONIC BALANCER P/N…………. ENGINE RPO

12648346............................................... LGX

12652776............................................... LGW

12674685............................................... LFX, LLT

12603180............................................... LF3

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