March 29, 2017
GM TechLink
A scraping or moaning sound may be heard from the supercharger idler pulley on some 2017 CTS-V, Corvette; and 2017 - 2018 Camaro models equipped with the supercharged 6.2L V8 engine (RPO LT4). The sound will be most noticeable when the engine is idling.
This condition has the following VIN breakpoints:
If the pulley sound is found, replace the idler pulley assembly. (Fig. 12)
Fig. 12
– Thanks to Richard Renshaw
Article ID: 1362
Created: May 10, 2017
Last Updated: May 10, 2020
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/2017-corvette-z06-gm-techlink-supercharger-idler-pulley-sounds-1362.html