Causes of car idling jitter

Causes of car idling jitter
 
What is going on with car idling jitter?
Many car owners and friends must have encountered such a situation: After the car has been driven for a period of time, the body will have some small jitters when idling, but they do not know the reason. In fact, "body shake" is an early warning signal that tells us that there is a problem with the car.
 
1. What is idling jitter?
The phenomenon that the vehicle body shakes when the vehicle is started or stopped without turning off the engine is called idling shake. Under normal circumstances, idling jitter does not affect normal driving, but it is a signal of vehicle problems. When the vehicle jitter is obvious, it needs to be overhauled as soon as possible to avoid other major failures.
 
2. What is the cause of idling jitter? How to deal with it?
There are generally five main aspects that cause vehicle idling jitter, which are: serious engine carbon deposits, gas  filter blockage, ignition system problems, unstable oil pressure, and aging of engine components.
 
1. Engine carbon deposits are serious
The most common cause of car jitter is that the throttle is too dirty or the fuel injector is too carbon. When there is too much carbon deposits inside the engine, the gasoline sprayed by the cold start injector will be absorbed by the carbon deposits, causing the cold start mixture to be too lean, making it difficult to start. In this case, only gasoline that waits until the carbon deposits are absorbed When the car is saturated, it is easy to start the car. The gasoline adsorbed on the carbon deposit after the car is sucked into the cylinder by the vacuum suction of the engine to burn, and the mixture becomes thicker. The combustible mixture of the engine is sometimes thin and sometimes rich, resulting in cold start. Idle speed jitter.
 
Solution: Clean the oil circuit, check whether the idling motor has carbon deposits and clean it.
 

 
 
 
2. The gas  filter is blocked
A large amount of impurities are filtered on the surface of the gas  filter, blocking the air holes, resulting in a reduction in the amount of combustion air entering the engine, resulting in insufficient combustion, resulting in a large amount of carbon deposits, resulting in serious engine carbon deposits and idling jitter. At the same time, the clogging of the gas  filter will increase the fuel consumption of the vehicle, reduce the power, and seriously wear the cylinder.
 
Solution: Replace with a new gas  filter
 

 
3. Ignition system problem
Poor operation of the ignition system is also one of the reasons for idling jitter. The most common reason is that spark plug carbon deposits cause poor sparkover and jitter.
 
Solution: Check whether the spark plug has excessive carbon deposits and replace the spark plug.
 

 
 
4. Unstable oil pressure
If you have cleaned the carbon deposits in the engine, washed the throttle, and changed the gas  filter and spark plugs, you still find that the body shakes at idling speed. At this time, you need to check whether the fuel supply pressure and the intake pressure sensor are normal. If the fuel pump supplies fuel Abnormal pressure or incorrect value of intake pressure sensor and poor operation will cause body shake.
 
Solution: Check the oil pressure and replace parts if necessary.
 

 
5. Aging of engine parts
In addition to the above several reasons that can cause idling jitter, car jitter is also related to the aging of the engine feet. The engine feet are actually the shock absorber system of the engine. The engine feet are responsible for absorbing the slight jitter when the engine is running. If there is a problem with the engine feet, these vibrations will be transmitted to the steering wheel and the cab, causing jitter when idling.
 
Solution: Replace aging parts
 

 
Friends, do you understand? When the vehicle is idling jitter, ordinary car owners basically cannot solve it by themselves. Therefore, once the jitter problem occurs, do not ignore it. Instead, go for inspection and repair as soon as possible, otherwise it will easily cause other major failures.