CAR MECHANIC

The Engine Makes Noise When Accelerating- Diagnosis and Solving the Issue

1) Pre-ignition / detonation / “pinging” (spark knock) Sound: A metallic pinging or rattling, usually at light to medium throttle. Often more noticeable under load/acceleration.Why: Fuel-air mixture ignites too early or unevenly — low octane fuel, incorrect ignition timing, carbon deposits, or a bad knock sensor.How to check: Does it happen when you use low-octane […]