I have a 2018 Chevy Tahoe with rough idle. Dealer says this one is normal also. Didn't know I had an engine with a racing cam that smooths out above 1500 rpms. This started after vehicle had 12000 miles. Seems to be a common problem. Definetly get Regional GM rep. involved or have GM buy it...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.