Скачать или смотреть Engine Knock Sound When Accelerating? Here's Why

Engine knock, or pinging, is an abnormal combustion event often heard during acceleration, caused by factors like low-octane fuel, incorrect ignition timing, lean air-fuel mixtures, faulty sensors, or carbon buildup. Diagnosing it involves checking for trouble codes, inspecting ignition components, analyzing fuel trims and timing data, verifying sensor accuracy, and assessing mechanical health through compression or borescope tests. Common fixes include using higher-octane fuel, replacing spark plugs or sensors, cleaning the intake system, and correcting ECU timing. Preventing knock requires regular maintenance, using the right fuel, and avoiding engine lugging under load.

00:00 - What is Engine Knock?
00:43 - The Science of Engine Detonation
01:21 - Cause 1: Combustion Issues (Lean Mixture & Carbon Buildup)
01:55 - Cause 2: Poor Fuel Quality & Low Octane
02:29 - Cause 3: Ignition System Problems
02:52 - Cause 4: ECU, Timing, & Sensor Issues
03:50 - Cause 5: Mechanical Problems (EGR, GDI, etc.)
04:23 - Diagnostic Step 1: Confirm the Sound & Check Codes
04:54 - Diagnostic Step 2: Analyze Live Scan Tool Data
05:52 - Diagnostic Step 3: Key Questions to Ask
06:31 - Quick Guide: Symptoms & Likely Causes
07:22 - How to Prevent Engine Knock