Samo
New member
Noise coming from new 24 3.0. Doesn’t happen all the time, not on cold starts but only after long drives and/or when engine is hot.
Anyone have any ideas? TIA
Anyone have any ideas? TIA
So I did take it in and I was told it’s “normal”. Found some info in the r/gmcsierrahi! i just found this post, I noticed this "buzzing" from the exhaust today. Were you ever able to take it in? I am only at 1200 miles so no where near a oil change and I hate to drop off the truck when it might be a couple weeks until they can diagnose it.