JMC Powerway diesel idle jitter is not more carbon deposits

Diesel engine idle jitter is common for the following reasons:

1. The grease nozzle of a cylinder injector is stuck and the atomization is poor, resulting in the cylinder not working or working poorly (the exhaust will emit blue and white smoke). It can be inspected by the cylinder breaking method.

2. The idle oil supply of the fuel injection pump is uneven, resulting in uneven working of each cylinder at idle speed.

3. Improper idle speed adjustment ** speed is too low), which can be solved by adjusting the idle oil supply screw.

4. Improper valve clearance (loose or abnormal wear of adjusting screws, abnormal wear of valve push rods, etc.), resulting in the cylinder not working or working poorly. This can be solved by adjusting the valve clearance.

5. The valve seal is not tight, resulting in poor work.

6. The high temperature of the engine or the lack of oil (resulting in poor lubrication) makes it difficult to run the parts.

Clean up carbon deposits from the injector and increase the idle speed if necessary.

Diesel engine idle shake, acceleration weakness, I personally think that it may be caused by too much carbon deposits in the car engine, it is recommended to check whether the engine needs to remove carbon deposits.

What is the reason for the diesel engine idle shake and weak acceleration. PEA This thing is not expensive, 300 yuan to buy a big barrel. There is domestic PEA, but if you add pure PEA to try, the car will be scrapped immediately, pure PEA is 100% PEA, so is there a difference between PEA additives with a claim content of 96% and pure PEA?

We have a good product. PEA cold temperature has no effect but increases carbon deposits, and it has no effect when it needs to be cleaned the most, just like Brilliance Zhonghua Automobile, we are BMW engines, is it useful? The quality of the car is not that you use a BMW engine or a good car, right?

The car is a match for the overall performance, so why advertise the use of BMW engines, because others have the impression that they are bordered by famous brands. That's how consumers are fooled. So, what about the 96% PEA additives that are stained with PEA and high-purity PEA?

The conclusion speaks for itself.

Idling body shake is a common situation encountered by many car owners. If the owner finds that the body shakes significantly while starting the vehicle or stopping the vehicle without turning off the engine, it may mean that the vehicle has one of the following three conditions:

1.The most common cause of car shake caused by serious carbon deposits in the engine is that the throttle valve is too dirty or the fuel injector is too much carbon. When there is too much carbon inside the engine, the gasoline ejected from the cold-start injector will be absorbed by the carbon deposit, resulting in a cold-start mixture that is too thin and makes it difficult to start.

In this case, only when the gasoline absorbed by carbon deposits is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the vacuum suction of the engine after the car is burned, and the mixture becomes thicker, and the combustible mixture of the engine is dilute and thick, resulting in idle shaking after cold start. The lower the temperature, the greater the amount of oil required for the cold start, and the more carbon deposits will affect the smooth cold start.

Solution: Clean the oil circuit and check whether the idle motor has carbon deposits and should be cleaned.

2.Ignition system problems Check the working condition of the spark plug, high-voltage wire and ignition coil, the ignition system is not working well, and the spark plug flashing condition is not good will also lead to this kind of failure.

Solution: Check whether the spark plug has too much carbon deposit, and replace the spark plug.

3.If the oil pressure is unstable, if you have cleaned the engine carbon deposit, washed the throttle, changed the oil pad and spark plug, etc., and still found that the body shakes when idling, it is recommended that you go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is abnormal or the intake pressure sensor value is wrong and the work is not good, the body shakes will be caused.

Solution: Check the oil pressure and replace the parts if necessary.

1. It may mainly be caused by excessive carbon deposition in the idle motor, intake duct, intake valve and combustion chamber.

2. Because of the excessive carbon deposition and dirt in the air intake, the cross-sectional area of the air passage changes, resulting in the mixture being too thick or too thin, making the combustion abnormal or the engine shaking or even unable to start after starting. Or because there is a problem with the fuel injector, there is leakage or too much carbon, resulting in the mixture being too thin during start-up, which makes it difficult to start.

3. If the carbon canister or carbon canister solenoid valve fails, it will also cause it to be difficult to start.

Mercedes-Benz GL diesel car shakes when idling It doesn't matter what kind of fuel is added at a big gas station, people clean the underground oil storage tank once in February at a big gas station, and clean the fuel tank for private cars? Who did the dirty oil add, and it was added when the idea was not right, and the fuel at the gas station was different for each batch. The mix continues to be sold, so why should the gas station clean the tank if it is not dirty?

The reason is very simple, the more precise the engine team, the higher the fuel requirements, and the fuel with more impurities and moisture will be shaken if the combustion is not good. As long as the oil circuit is cleaned, the new car is the same. The treatment is very simple, only 3 companies have general additives to run the fuel tank to run 2 tanks of oil, and the problem of poor fuel injection combustion will be solved.

It is a resonance phenomenon caused by the resonance of the car's natural frequency at idling. Just turn the idle speed down a little bit or up a little bit to avoid resonance.

It may be due to excessive carbon build-up in the throttle valves, fuel injectors, idle motors, intake valves, combustion chambers, intake pipes, and spark plugs. Because on the one hand, these carbon deposits will make the wall of the intake pipe rough, and the intake will produce vortices in these rough places, affecting the intake effect and the quality of oil and gas mixing. On the other hand, these carbon deposits will also block the idle channel, causing the idle control device to get stuck or out of its adjustment range, which will cause low idling, idle shivering, oil collection and vehicle consumption, fuel consumption and other phenomena.

It is also possible that the fuel injector is not closed tightly, and the mixture in the combustion chamber is too concentrated after the oil is closed.