How do you know if your car is idling?

Related questions

1. Why Does idle mean?
2. Does idling car drain battery?
3. Does car charge battery while idling?
4. Can excessive idling damage a car?
5. What is idle computer?
6. Is it bad to leave car idling with AC on?
7. Why is my car shaking when idle?
8. Where is idle in Python?

Tags

1. #rough
2. #immediately
3. #probably
4. #idling
5. #notice
6. #severe
7. #bouncing
8. #identifiable
9. #others
10. #vehicle
11. #sounds
12. #counts
13. #sensation
14. #shaking
15. #experiencing
16. #cases
17. #usually
18. #while
19. #inconsistent