The car engine is the heart of the car, and its working state directly affects the performance and life of the car. If the engine shakes at idle, it will not only affect driving comfort, but may also hide a greater hidden danger. So, what causes engine idle jitter? And how to solve it? This article will introduce you to the 4 main causes of engine idle shake and the corresponding solutions, so that you can avoid being wronged and wasted money.
First, the engine has too much carbon deposit.
Engine carbon deposition refers to a black viscous substance produced inside the engine due to incomplete fuel combustion or poor oil quality. Engine carbon deposits are mainly attached to fuel injectors, throttles, spark plugs and other components, affecting their normal operation. Excessive carbon deposition in the engine will lead to uneven combustible mixture of the engine, reduce the combustion efficiency, and then cause the engine to idle and shake, reduce power, increase fuel consumption, and even cause engine damage.
Solution: Regularly clean the engine carbon deposit, use high-quality fuel, add fuel cleaning agent, and improve the cleanliness and combustion efficiency of the fuel.
2. Ignition system failure.
The ignition system is the system in the engine that is responsible for converting electrical energy into sparks and igniting the combustible mixture. The main components of the ignition system are spark plugs, high-voltage wires, and ignition coils. If the ignition system fails, such as spark plug wear, high-voltage wire aging, ignition coil damage, etc., it will lead to unstable spark plug flashover, or can not ignite the combustible mixture in time, resulting in a lack of engine fire, and then cause engine idle shaking, increased fuel consumption, excessive emissions and other problems.
Solution: Check and replace the damaged parts of the ignition system to ensure the normal operation of the spark plug and improve the reliability of the ignition system.
3. The oil pressure is unstable.
Oil pressure refers to the pressure of fuel in the oil circuit in the engine. The magnitude and stability of oil pressure directly affect the supply and injection of fuel. If the oil pressure is too low, it will lead to insufficient fuel**, insufficient engine power, and idle shaking; If the oil pressure is too high, it will lead to excessive fuel**, incomplete engine combustion, and idle jitter. There are many reasons for oil pressure instability, such as oil pump damage, oil circuit blockage, oil pressure regulator failure, oil filter blockage, etc.
Solution: Check and replace the oil pump, oil circuit, oil pressure regulator, oil filter and other components to ensure the normal and stable oil pressure.
Fourth, the engine claw pad aging.
Engine claw pads refer to the connecting parts between the engine and the body, which mainly play the role of shock absorption and sound insulation. Engine claw pads are generally made of rubber, and after a long period of use, there will be aging, deformation, rupture and other phenomena, and lose the original elasticity and cushioning ability. In this way, the vibration generated by the engine when it is running will be transmitted directly to the car body, causing the body to shake, the engine noise to increase, and the driving comfort to decrease.
Solution: Check and replace the claw pad of the engine to restore the good connection between the engine and the body.
The above are the 4 major causes and solutions of engine idle shake, I hope to refer to you. If your car has the phenomenon of engine idle shaking, it is recommended that you go to a professional car repair shop for inspection and repair in time to avoid greater losses. At the same time, you can also prevent the occurrence of engine idle shake through regular maintenance, reasonable driving, and the use of high-quality oil, so as to ensure that your car is safe, fuel-efficient and durable.