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Old 03-24-2022, 05:34 PM   #1
Mac7504
 
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Drives: 2003 Monte Carlo SS SLP, 2022 ZL1
Join Date: Aug 2021
Location: Los Angeles, CA
Posts: 493
Angry Damn NPP Rattle!!!

So I just picked up a new ZL1 March 5th and when I got her home and took her for a spin the next day and I noticed a slight rattle coming from the rear of the car. Not knowing this was "a thing", I overlooked it.

Now, after reading on it and realizing it's a known issue it's pissing me off. When I started the car today, I realize the sound was only prevalent on cold start then stops but upstream there is a smaller ping which I could live with tbh. It might be me just listening to closely to shit too, dunno.

After reviewing threads on here, there is a TSB for it but the date cuts off at 2019. Has anyone with a 2020+ have the dealer look at this and remove the dog ears to cure this?

At the end of the day, it's not a terrible issue but pisses me off that it's a known issue and GM couldn't be bothered to fix it.

I hate my OCD. lol
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