Since my old car has vibration issues (even after "balancing" the tires) and has occasional random squeak issues, I am wondering if an Arduino-based project might be helpful to locate the culprit in these cases.
I would propose four sensor assemblies, each with an accelerometer and a microphone. Each of these would be attached with a clip to the areas of interest. I would then have cables between the sensor assemblies and the Arduino.
Since a tire at 60mph/100kph rotates at about 16Hz, it may be useful to only display frequencies between 10Hz and 20Hz. It may also be helpful to record less than a second of data, in order to provide a reasonably legible graph. The Arduino would be able to graph the relative acceleration and noise from the four sensor assemblies.
Is an Arduino a good architecture to implement this project?