Python libraries like pandas and scipy can be used to perform Fourier analysis and cycle detection, though this requires programming knowledge.
| Symptom | Diagnosis | Immediate Action | Part Cost Range | | :--- | :--- | :--- | :--- | | Visible cracks on belt | Age/Oil contamination | Stop driving; replace belt & tensioner | $50 - $200 | | Cracked plastic guide | Tensioner failure | Drop oil pan; replace chain & guides | $100 - $500 | | Cracked timing cover | Physical impact/warp | Weld or replace cover | $150 - $800 | | Chirping/Clicking noise | Cracked pulley/idler | Replace idler and inspect belt | $30 - $120 |