A knocking noise coming from the engine can be a sign of a serious issue that needs to be addressed promptly. Here are a few possible causes of engine knocking:
1. Low engine oil level: Check your oil level and top it up if it is low. Running the engine with low oil can cause knocking sounds.
2. Worn out engine bearings: If the engine bearings are worn out, it can cause knocking noises as metal parts rub against each other.
3. Fuel-related issues: Using low-quality fuel or fuel with a low octane rating can cause knocking in the engine.
4. Ignition timing issues: Incorrect ignition timing can cause the fuel to ignite at the wrong time, leading to knocking sounds.
5. Piston slap: This occurs when the piston moves sideways in the cylinder, causing a knocking noise.
I recommend having a professional mechanic inspect your engine to diagnose the issue accurately and recommend the necessary repairs. Driving with a knocking engine can cause further damage and potentially lead to a breakdown.
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