Owners of  2017 Cadillac FTC-V vehicles equipped with a 6.2L LT4 engine, from VIN H0194673 to H0196684, may comment on a scraping or moan noise heard best when the engine is idling.

The cause may be a failing supercharger idler pulley assembly. 

Note the location of the supercharger belt idler pulley.

Note the location of the supercharger belt idler pulley.

The replacement pulley is available under P/N 12668046.

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