Originally Posted by medjohn
The check engine light came on in my 2007 GXP. I took it to the local Chevy dealer and they replaced the spark plugs with hotter ones. Now the engine misses at about 5000 RPM. I didn't notice the miss right away because I don't always "get on it" that much. Could it be the new spark plugs or do I have other issues?
Have you contacted the dealer who did the work to let them know about the issue? Please keep us updated on what they tell you and send a PM if you feel this isn't addressed correctly for you. I hope you're having a good holiday season in spite of the issue. Thank you.
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