What is the cause of the jitter when the new Focus is going uphill

Hello! The engine has a lot of carbon deposits.

The most common cause of car shake is a dirty throttle or excessive carbon build-up in the fuel injector. When the carbon deposition inside the engine is excessive, the gasoline sprayed by the cold start fuel injector will be absorbed by the carbon deposition in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by carbon deposition is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposition after the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing 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.Problems with the ignition system.

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 tripping condition is not good, which 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.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 shake will be triggered.

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

4. Aging of engine parts.

Car jitter is also related to the aging of the engine feet (also known as claw pads). The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorbing the subtle shake of the engine when it is running, and if there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel and cab, causing shaking when idling.

Workaround: Replace the parts.

The body shakes when changing gears.

If the vehicle starts in first gear, the clutch will feel shake throughout the engagement process, and it is recommended to check whether the pressure plate and friction plates of the clutch are deformed and warped. If the jitter phenomenon only occurs when the clutch is fully integrated and the accelerator pedal is in a state of acceleration, it is recommended to check whether the engine is not powerful enough, and it is not excluded that the power of individual cylinders is insufficient.

Hope it helps, hope, thank you!

This situation may be caused by the following two reasons: one is caused by too low idling, you can try to turn it up; The second is the four fixed points of the new Focus suspension engine, only the two points of the horns are padded rubber, this structure determines that some cars will have jitter transmitted to the body at the start, and it cannot be felt if you don't pay attention. It is recommended to go to the 4S shop to clean the throttle, and it should feel better.

If it is only slight, it should be the movement of the gear when it is engaged, which is normal; If the shaking is very strong, it needs to be detected, which may be caused by the engine mount; Or it is a problem with the oil circuit, there is carbon deposit, which may be caused by poor refueling quality; It may also be that there is a problem with the EFI system, it is recommended to clean the oil circuit and fuel injector nozzle. It is best to go to 4S for a comprehensive test, find out the cause, prescribe the right medicine, and answer if it is helpful to you.

This situation may be caused by the following two reasons: one is caused by too low idling, you can try to turn it up; The second is the four fixed points of the new Focus suspension engine, only the two points of the horns are padded rubber, this structure determines that some cars will have jitter transmitted to the body at the start, and it cannot be felt if you don't pay attention. It is recommended to go to the 4S shop to clean the throttle, and it should feel better.

If it is only slight, it should be the movement of the gear when it is engaged, which is normal; If the shaking is very strong, it needs to be detected, which may be caused by the engine mount; Or it is a problem with the oil circuit, there is carbon deposit, which may be caused by poor refueling quality; It may also be that there is a problem with the EFI system, it is recommended to clean the oil circuit and fuel injector nozzle. It is best to go to the 4S comprehensive test, find out the cause, prescribe the right medicine, and answer if it is helpful to you, please adopt it.

Ford-Focus - The vehicle shakes when starting, engine idle shake fault diagnosis generally has several situations, excluding the cause of accessories, the most common cause of car shake caused by serious engine carbon deposition The engine has a general idle shake fuel additive cleaning agent, which can remove carbon deposition without disassembling the engine oil to clean carbon sludge, it is very convenient to use, suspension decomposition does not clog and at the same time miscible with engine oil will not lead to delamination, better and safer cleaning your engine.

Focus starting jitter generally occurs when driving on high slopes without oil, jitter will be more obvious, if you feel the jitter is likely to be a fault of the clutch components, it should be repaired and checked in time. What causes the car to start shaking? 1. The clutch shakes to make the engine idle and run at low speed, hang up the low-speed gear, slowly release the clutch pedal and increase the throttle to start, if the body shakes at this time, it means that the clutch is shaken.

2. The uneven distribution of positive pressure between the main and driven discs often engages the uneven elasticity of the clutch compression spring, and the adjustment of the separation lever is inconsistent and the finger end of the diaphragm spring separation is uneven, which will lead to the unsynchronized compression time, the uneven force of the pressure plate, and even the skewed pressure plate, resulting in poor contact between the main and driven discs, resulting in the shaking of the clutch. 3. The elastic force of the damping spring becomes weaker, the clutch torsion, the elastic force of the damping spring becomes weaker, the elastic force of the clutch compression spring becomes weaker, and the diaphragm spring produces cracks, etc., which will cause the clutch to tremble when engaged. The strategy that should be adopted at this point is to replace the springs.

4. Poor contact of clutch lining, poor contact of clutch lining, surface hardening or glue-like substance, easy to cause clutch trembling. At this time, the clutch lining should be re-connected. 5. When the driven disc is warped, skewed and deformed, the clutch lining will be in irregular contact during the clutch engagement process, and the pressure cannot be increased smoothly.

At this point, the driven disc should be calibrated or replaced. Hello, the starting jitter is caused by the uneven clutch pressure plate in the separation process, the clutch pressure core needs to be replaced, and the clutch plate is checked, if the clutch surface is seriously worn, it must be replaced together, I am very happy with your problem, I hope it can help you, I wish you a happy car! @2019

Fox. The causes of idle jitter are as follows:

1. Spark plugs.

The gap is too large or too small, too much carbon deposits in the spark plug, damage to the ignition coil, high voltage wires.

Problems such as falling off or leakage are important causes of body shaking. If you are unstable at idling, you can start checking the entire ignition system, and sometimes it's a matter of changing the spark plug.

2. Engine and throttle.

and excessive carbon deposition on the fuel injector is the biggest cause of engine shaking. Because carbon deposition has an adsorption effect on gasoline, too much will be sucked into the cylinder for combustion, so it will cause the concentration of mixed gas in the cylinder to be high and low, and the cold start jitter is particularly obvious. In this case, as long as the carbon deposits are cleaned up in time.

3. The shaking of the car idle body may also be related to the aging of the engine foot (also known as the claw pad). The engine foot is located between the body and the engine and is part of the suspension system of the car's engine, which is responsible for absorbing the subtle vibrations of the engine while it is running. If there is a problem with the engine foot, its own shock absorption is reduced, causing the body to shake when idling.

4. The unstable oil pressure is easy to cause the concentration of the mixed gas to be unstable, which will not only cause shaking but also cause the phenomenon of unstable idling. You can first consider replacing the gasoline filter, after all, the filter may be clogged after a long time, and then check the oil pressure through the gasoline filter, if it is not normal, it may be a problem with the oil pump.

What's the deal with the classic Focus acceleration jitter? Classic Fox ( Price |What is the acceleration jitter? If there is acceleration jitter, it may be due to damage to the sensors near the engine or a problem with the ignition system.

There are a lot of sensors around the engine, such as oxygen sensor, intake air flow sensor, intake air temperature sensor, water temperature sensor, camshaft position sensor, etc. If a sensor is damaged, it can cause problems with the engine while it is working. The ignition system is one of the more important systems on the engine, if the ignition of the classic Focus acceleration jitter is caused by the following:

1. If there is acceleration jitter, it may be caused by damage to the sensor near the engine, or it may be caused by a problem with the ignition system; 2. There are many sensors around the engine, such as oxygen sensor, intake air flow sensor, intake air temperature sensor, water temperature sensor, camshaft position sensor, etc. If a sensor is damaged, it can cause problems with the engine while it is working. 3. The ignition system is a more important system on the engine, if the ignition system works poorly, the engine will be abnormal; 4. The spark plug needs to be replaced regularly, and the electrode gap will become larger after long-term use, which will affect the ignition of the spark plug. If the ignition of the spark plug is poor, it will lead to insufficient combustion in the engine; 5. Carbon deposits will occur on the electrode after long-term use of the spark plug, and carbon deposition will also affect the ignition of the spark plug.

The ignition coil may also malfunction after a long period of use, and riders need to replace the spark plug and ignition coil regularly. @2019

The reasons for the acceleration jitter of the classic Focus are as follows: 1. If there is an acceleration jitter, it may be caused by damage to the sensor near the engine or a problem with the ignition system; 2. There are many sensors around the engine, such as oxygen sensor, intake air flow sensor, intake air temperature sensor, water temperature sensor, camshaft position sensor, etc. If a sensor is damaged, it can cause problems with the engine while it is working. 3. The ignition system is a more important system on the engine, if the ignition system works poorly, the engine will be abnormal; 4. The spark plug needs to be replaced regularly, and the electrode gap will become larger after long-term use, which will affect the ignition of the spark plug.

If the ignition of the spark plug is poor, it will lead to insufficient combustion in the engine; 5. Carbon deposits will occur on the electrode after long-term use of the spark plug, and carbon deposition will also affect the ignition of the spark plug. The ignition coil may also malfunction after a long period of use, and riders need to replace the spark plug and ignition coil regularly.

The reasons for the jitter when the classic Focus accelerates are: 1. The foot glue is damaged, when the foot glue is damaged, the function of noise and shock absorption will be insufficient, especially when accelerating and decelerating, the jitter and noise are very obvious; 2. Unbalanced wheels will also cause acceleration shaking, and the steering wheel will shake more violently; 3. Too much carbon deposition on the throttle, which will lead to many small faults and small problems, and accelerated jitter is one of them; 4. There is a problem inside the engine; 5. If the spark plug fails, in the engine cylinder, the mixture needs to be ignited by an electric spark, but if the power of the electric spark is not enough or even there is no electric spark, then it will lead to a lack of cylinder, which breaks the balance of engine operation, and the jitter and noise of the closed resistance faction will also follow; 6. Clutch slippage, whether it is a manual transmission or a dual-clutch transmission, it transmits power by pressing the clutch plate, when the clutch slips, the engine shakes like a semi-linkage, and there will be a sense of breaking or even stalling.