I have an 08 Jeep Grand Cherokee with the 5.7 hemi in it. When it drives and idles, the rpms fluctuate a little bit. Maybe 200 rpms at a time. At idle you can notice it, and when it is driving, it'll do it as well. I'm not too sure as to why it would do that, and if it's going to be a problem or not..
Any ideas would be great as well.
P. S. It also makes an almost bit of a ticking sound when it is driving. Some where from the front end it does it.