What Causes the Abnormal Noise When Accelerating a Car?

1 Answers
MacVera
07/29/25 7:02pm
Reasons for abnormal noise when accelerating a car: 1. Excessive clearance or damage in internal engine components such as pistons, valves, gears, and camshaft bearings; 2. Loose or insecure connections in areas like door panels, glove compartments, air vents, and center console panels causing friction; 3. Rusty brake discs or noise caused by trapped sand and debris; 4. Loose shock absorbers or connecting components in the suspension system. Engine maintenance methods include: 1. Regularly changing engine oil and oil filters; 2. Periodically using high-efficiency rapid cleaning agents for the lubrication system to clean the crankcase and maintain internal engine cleanliness; 3. Regular maintenance of the PCV system, removing contaminants around the PCV valve to ensure proper crankcase ventilation.
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