So I'm having what I hope are a couple of minor issues with the Jeep at the moment. 2000 Sport, 4.0l manual. Over the last week, at about 100kmh she vibrates a little (not every time at 100 though weirdly), didn't think much of this however but started her up this morning and she was idling super low (around 200-300? although hard to tell off the analog guage) and vibrating quite a bit that the dash was shaking a little. It would sort of vibrate for 10 seconds and then the rpm would go up to about 400 (still low) for about 10 seconds, and then back down and then up etc,. Once i gave it some throttle and it warmed up it drove completely fine the whole hour home (except some those slight vibes at 100kmh that I mentioned). Not sure if the two issues are actually linked but it would be a weird coincidence if they weren't. Anyone have any ideas?
Cheers
Cheers