Across
- 3. – Subtle vibration from engine or road
- 6. – Steady low sound from running engine
- 8. – Rapid rotating motion or sound
- 10. – Sound from air or fluid leak
- 12. – High-pitched noise from engine or gear
- 13. – Black residue from engine exhaust
- 14. – Straight path of light
Down
- 1. – Noise from loose components
- 2. – Stuck part or obstruction in motion
- 4. – Sudden burst of air or fuse failure
- 5. – Short alert sound from a system
- 7. – Sliding movement around corners
- 9. – Joint that allows doors or parts to pivot
- 11. – Side-to-side motion, often in suspension
- 14. – Vibrating sound from a small motor or sensor