What Causes Loud Noises in a Car?
1 Answers
Reasons for loud car noises: 1. Engine Oil: High viscosity or deteriorated lubrication of engine oil can cause loud engine noises. It's essential to visit a repair shop to check if the oil needs replacement. 2. Belt: Inspect whether the belt is loose. A loose belt can increase noise levels in the engine compartment. 3. Coolant Temperature: Loud engine noises might be due to high coolant temperature. Check if the temperature gauge is normal and look for any smoke in the engine compartment. Ensure to replace the coolant before winter. 4. Idle Speed: High idle speed can make the noise seem louder. It's advisable to clean the throttle body, intake tract, and fuel injectors. 5. Sound Insulation: If the interior noise is noticeably loud, it indicates poor sound insulation. Check if the vehicle's sealing strips have aged.