Neil Baker

Anyone think their C7 2LT Z51 Mn7 idles too low? Seems much lower than my C6 was and the idle seems very rough. Do Y'all know if this is adjustable on the new designed V8? salute:

Millerrock

Low idle?? Nope, If the check engine light isn't on, everything is fine. You can't adjust idle.

dvilin

The low and somewhat rough idle on the C7 M7 is normal. Seems fine to me, honestly can not remember how it compares to my former C6.

Eff A Ford

Most modern cars idle pretty low. Probably to increase MPG ratings.

Micster

Idle is at roughly 550-600 consistently. Noticed it's a little rough at times, but as dvilin mentioned, I too learned it's typical for C7's LT1's. Didn't know it wasn't adjustable, which is fine because I'm better with a screwdriver than a PC for this & tuning.

syswayne

I just purchased a new C7 and it also idles rough. My C6 never idled rough. Wonder why?