What Causes the Ticking Sound When Lightly Pressing the Accelerator?
1 Answers
Ticking sound when pressing the accelerator is related to engine oil issues. Specific reasons: First, you should check the engine oil yourself. If the oil hasn't been changed for a long time or has deteriorated, it can increase friction between the cylinder valves and guides, as well as hydraulic lifters, resulting in abnormal noises when accelerating. Cold engine stage: During cold starts, a "ticking" sound is often caused by camshaft wear leading to valve noise. This occurs because metal gaps are larger when the engine is cold, resulting in poor sealing. If the "ticking" sound persists, it indicates significant camshaft wear, which may also be accompanied by poor acceleration performance.