···
Log in / Register

How to Solve the Problem of Engine Muffling and Lack of Power During Acceleration?

3 Answers
SanParker
08/30/25 7:44am
The solutions for engine muffling and lack of power during acceleration are: 1. Check if the engine oil and coolant are sufficient, and top them up as needed; 2. Inspect the air filter for dirt and clean or replace it; 3. Visit a 4S shop for engine carbon cleaning and maintenance; 4. Maintain good driving habits and avoid aggressive driving. The reasons for engine muffling and lack of power during acceleration are: 1. Failure in the engine lubrication system, causing the engine to overheat; 2. Air leakage in the intake pipe leading to a lean air-fuel mixture; 3. Weak spark due to faulty spark plugs, ignition coils, or high-voltage wires; 4. Poor functioning of the exhaust gas recirculation system; 5. Faulty air flow meter, intake manifold absolute pressure sensor, or throttle position sensor; 6. Turbocharger system failure; 7. Carbon buildup in the cylinders, throttle, spark plugs, or intake pipes.
Was this review help?
8
4
Share
DelNoah
09/12/25 4:40am
The car feels sluggish and lacks power during acceleration. As an experienced driver, I've encountered this issue several times. The main causes could be inadequate fuel supply, such as a clogged fuel filter or a malfunctioning fuel pump. Carbon buildup in the fuel injectors may also lead to insufficient fuel delivery. Air system problems are also common; a dirty air filter restricts airflow, causing an improper air-fuel mixture that affects combustion. I recommend first checking the air filter yourself to see if it's dirty—cleaning or replacing it is inexpensive. If the issue persists, it might be due to worn spark plugs or faulty ignition coils, which require professional tools to diagnose. Don’t ignore this, as poor acceleration can be dangerous when overtaking. Get a comprehensive inspection at a repair shop to check the fuel system, sensors, and exhaust system promptly. Additionally, regular maintenance can prevent these issues, ensuring safe and smooth driving. Don’t wait for a major breakdown to act. I’ve seen a friend neglect this and end up with engine damage—regret came too late.
Was this review help?
5
2
Share
Expand All
VonNicole
10/26/25 5:29am
I'm used to repairing my own car and have dealt with power loss issues several times through DIY methods. Start with the basics: a clogged air filter can reduce air intake. I take it apart to check, and if it's dirty, I replace it with a new one—just a few bucks. Next, inspect the fuel system. If the fuel filter or injectors are carbon-fouled, a cleaning agent can help—just spray a bottle and see. Worn spark plugs are a common culprit; I've replaced them before using a wrench—easy to do. But don’t act blindly. If it involves fuel pump or sensor issues, like a faulty oxygen sensor affecting the air-fuel mixture, professional diagnostic tools are needed. Saving money is great, but safety comes first—for complex issues, I recommend visiting a repair shop. I always keep basic tools in my car and regularly check tire pressure and fuel quality, as poor-quality gasoline can easily cause problems. Before working, ensure the engine is cool to avoid injuries. The long-term solution is regular maintenance to minimize unexpected issues.
Was this review help?
3
4
Share
Expand All
More Forum Discussions

What is the fuel consumption of the new Baojun 510 automatic transmission model?

Baojun 510 has a fuel consumption of 6.3 liters per 100 kilometers. Method for calculating fuel consumption: Vehicle fuel consumption is calculated based on the fuel consumed per 100 kilometers (commonly referred to as 100 kilometers). The actual fuel consumption calculation method: average fuel consumption = (total fuel added - last fuel added) / mileage. In simple terms, fill up the fuel tank, note the mileage (the vehicle can also record it automatically), run until half the fuel is consumed, then refill the tank. Before refueling, check the mileage, calculate the distance traveled, and divide the distance by the amount of fuel added this time. Factors affecting fuel consumption: In fact, factors such as vehicle weight, tires, wind resistance, and load can also affect fuel consumption performance. Therefore, to achieve better fuel economy, avoid high engine RPM operation, and you can release the throttle to let the vehicle coast downhill. Replacing low rolling resistance tires can also help save fuel to some extent.
1
2
Share

What Causes the BMW 5 Series Keyless Entry to Be Unresponsive?

Reasons for the BMW 5 Series keyless entry being unresponsive: Typically, when the key fob fails to unlock the car door, there are two possibilities—either the car's battery is dead, or the key fob battery is running low. Keyless Entry: With the key fob on your person, the vehicle can detect its presence upon entering, allowing you to start the car simply by pressing the ignition button. Additionally, the GLK300 luxury model features an electric tailgate closing function. A light press of the button on the tailgate automatically closes and locks it, which is particularly convenient and labor-saving for petite women. Keyless Entry Principle: The car keyless entry system, abbreviated as PKE, utilizes the world's most advanced RFID radio frequency technology and vehicle identity recognition system. It pioneers a compact, low-power RF antenna development solution, successfully integrating remote control and keyless systems while maintaining traditional vehicle circuit protection. This achieves a true dual RF system with double anti-theft protection, offering maximum convenience and security for car owners. The keyless system is not a traditional key but a smart key or smart card.
5
1
Share

What are the reasons for Audi CUH engine burning oil?

Audi cars burning oil is usually caused by the use of unqualified engine oil, the engine cylinder block material being cast iron, piston rings sticking due to carbon deposits and reduced elasticity, decreased cooling system efficiency of the engine, contamination of the crankcase ventilation pipeline and solenoid valve, among other reasons. Introduction to oil burning: "Burning oil" refers to the engine oil entering the combustion chamber of the engine and participating in combustion along with the air-fuel mixture. Hazards of burning oil: The phenomenon of "burning oil" in vehicles can cause the oxygen sensor to fail prematurely, leading to increased carbon deposits in the combustion chamber, unstable idling, lack of acceleration power, increased fuel consumption, excessive exhaust emissions, and other adverse effects. In severe cases, insufficient engine lubrication can cause irreparable damage to the engine or even render it unusable, significantly increasing repair costs and posing potential safety hazards.
2
1
Share

What is the hourly fuel consumption of the Cater 320d?

The Cater 320d has an hourly fuel consumption of 16.44 liters. Fuel consumption is related to the working environment: Fuel consumption is affected by whether the working environment is harsh, such as in mines, which require higher kinetic energy and thus result in higher fuel consumption for the Cater 320d. Fuel consumption is related to the working state: Prolonged idling, where the engine runs without load (i.e., when the excavator is not operating but the engine continues to run), can significantly increase fuel consumption. In daily operations, many construction sites have equipment idling for 40-50% of the time, leading to higher fuel consumption for the Cater 320d.
3
0
Share

What is the fuel consumption of the Geely Vision automatic transmission?

Geely Vision automatic transmission has a combined fuel consumption of 6.1L/100km. Currently, there are 7 models of Geely Vision automatic transmission available for sale, including the CVT Premium, CVT Asian Games Edition, and CVT Value Edition, all with a combined fuel consumption of 6.1L/100km. The above figures are NEDC combined fuel consumption, which are the fuel consumption data measured under the NEDC test procedure. The actual fuel consumption is higher than this value, ranging from 6.9-9.7L/100km. Methods to reduce fuel consumption: Clean engine carbon deposits: Excessive engine carbon deposits are a significant cause, mainly due to the use of unsuitable fuel. It is recommended to add a certain amount of cleaning agent when refueling. If the effect is not obvious, it indicates a large amount of carbon deposits in the engine. In this case, the car must be taken to a 4S shop for professional cleaning of the engine carbon deposits by technicians. Check the oxygen sensor: As an internal control unit of the car, the oxygen sensor mainly monitors the fuel-air ratio of the engine. Once damaged, it will cause an imbalance in the fuel-air ratio, leading to a sudden increase in fuel consumption. If the oxygen sensor is damaged, the exhaust pipe will emit darker exhaust gas during driving, and the oxygen sensor should be replaced. Regularly replace the three filters: During the use of the vehicle, the oil filter, air filter, and fuel filter must be replaced regularly. If not replaced for a long time, they become dirty and send incorrect information to the engine control unit, resulting in incomplete fuel combustion and increased engine carbon deposits. Check the electronic control unit: Although the engine's electronic control unit is highly reliable, in older vehicles, various faults may inevitably occur.
6
4
Share

Does a small car battery need to be replaced after three years of use?

Whether the battery needs to be replaced depends on whether it can function properly. Normal battery replacement cycle: If the car is equipped with the original battery, its correct service life is 3-4 years. If the battery can still function normally, there is no need to replace it. Replacement should only be considered if the battery fails to start the engine or cannot hold a charge. Signs that the battery needs replacement: The battery status indicator light turns on, the vehicle is harder to start than usual, requiring more than one attempt to ignite, or when idling during night driving, the battery's lifespan is insufficient, and it cannot provide enough power for adequate lighting, causing the lights to noticeably dim.
19
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.