- Apr 20, 2022
- 176
- 412
Well… I just got another Check Engine warning and rough idle. It shut itself off after remote start, then when I was inside it started and idled rough and stunk like backfire. Immediately contacted OnStar and got the diagnostics emailed to me. Tomorrow I limp into a local dealership and see what they can do. I have a feeling this is veering into lifter failure territory.