What are the causes of a car engine lacking power?
2 Answers
Car engine lacking power can be caused by: 1. Damaged spark plugs; 2. Poor fuel quality; 3. Excessive carbon deposits; 4. Unstable oil pressure. The function of an engine is: to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, causing the gas to expand and push the pistons to perform work. Methods for engine maintenance include: 1. Regularly changing the oil and oil filter; 2. Using lubricating oil of appropriate quality grade; 3. Regularly cleaning the radiator; 4. Regularly servicing the air filter, oil filter, and fuel filter; 5. Maintaining good crankcase ventilation and regular cleaning; 6. Regularly cleaning the fuel system.
I've encountered this issue quite a few times during my decades of driving. Engine weakness could be due to excessive carbon buildup on the spark plugs, resulting in insufficient ignition power. With weak sparks, the engine becomes sluggish. A weak fuel pump or clogged fuel injectors preventing proper fuel delivery can also cause this, sometimes accompanied by a strong fuel odor. The air filter needs regular replacement - too much dust accumulation blocking the intake will make the engine breathe unevenly. A clogged exhaust system, such as a failed catalytic converter, can suffocate the engine. If the oxygen sensor malfunctions and disrupts the air-fuel mixture ratio, similar symptoms may occur. I suggest starting your diagnosis from these areas - don't delay as bigger problems become harder to fix. Regular maintenance is key; check spark plugs and air filters every 10,000-20,000 kilometers.
