What Causes Abnormal Noises When Accelerating a Car?
1 Answers
Engine mount deterioration, engine misfire, and piston slap can cause abnormal noises when accelerating a car. The specific reasons are as follows: Engine Mount Deterioration: Abnormal noise caused by rough engine operation due to deteriorated engine mounts is triggered by excessively early fuel injection timing. Replacing the engine mounts will resolve this issue. Engine Misfire: The abnormal noise follows a certain pattern, accompanied by unstable engine speed and intermittent black smoke emissions. This uneven noise is caused by diesel leakage from the fuel injector. The faulty cylinder component can be identified using the cylinder cut-off method, and replacing the damaged part will solve the problem. Piston Slap: The exhaust pipe produces continuous backfire sounds during exhaust, along with black smoke emissions and overheating. Starting becomes difficult, and the backfire sounds lessen at low speeds. This abnormal noise is caused by excessively delayed fuel injection timing. Replacement of the cylinder liner, piston, and piston rings is required. Automotive Engine Maintenance Methods: Use anti-wear additives for maintenance, employ high-quality engine oil, use qualified coolant, regularly remove carbon deposits from the car, and replace the three filters on time. The three filters refer to the air filter, fuel filter, and oil filter.
