What Causes Engine Idle Shaking and Weak Acceleration?
2 Answers
Reasons for engine idle shaking and weak acceleration: 1. Carbon buildup in the engine; 2. Driving in congested areas; 3. Poor fuel quality. Solutions: 1. Regularly clean carbon deposits; 2. Try to avoid driving in congested areas; 3. Use higher-quality fuel. An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. An engine is a complete set of power output equipment, including transmission gears, the engine itself, and the drive shaft. The engine is just a part of the entire powertrain but is the core component of the entire engine system.
My car just had a similar issue - it was shaking like crazy at idle and had no power when accelerating. At first, I thought it was bad fuel, but there are actually many common causes. For example, worn spark plugs causing unstable ignition, clogged fuel filters leading to insufficient fuel supply, carbon buildup in the throttle body, or a faulty mass airflow sensor affecting air intake. Sensor issues are also common - like when an oxygen sensor gives wrong feedback, making the ECU give incorrect commands and messing up fuel injection. Loose engine mounts can worsen the shaking, while an aging fuel pump causes weak acceleration. After I replaced the spark plugs and cleaned the throttle body, it got much better. But for severe cases, you might need to check the electrical system or ECU faults. Whenever you notice unstable idling during daily driving, get it checked promptly - safety first. Don't wait until you're stranded on the road to regret it.
