What is the vibration of Volvo xc90 idle steering wheel?

The vibration of idle steering wheel of Volvo xc90 is a phenomenon that the engine is out of cylinders or one or more cylinders are not working normally, which leads to unstable rotation of the engine, resulting in trembling and vibration. There are many specific reasons, which need to be judged according to the actual detection and debugging of various types of vehicles.

The most common cause of automobile jitter is that the throttle valve is too dirty or the fuel injector has too much carbon deposit. When there is too much carbon deposit in the engine, the gasoline sprayed by the fuel injection head will be absorbed by the carbon deposit during the cold start, which leads to the lean mixture during the cold start and makes it difficult to start. In this case, only when the gasoline adsorbed by carbon deposits is saturated, it is easy to run into the car. After running into the car, the gasoline adsorbed on carbon deposits will be sucked into the cylinder by the vacuum suction of the engine for combustion, which will thicken the mixture and dilute the combustible mixture of the engine, resulting in idling jitter after cold start. The lower the temperature, the more oil is needed for cold start, and the existence of carbon deposit will affect the smooth start.

Reasons for engine jitter of Volvo xc90;

1. Oil path problem: The postal path problem is generally that the oil path is blocked, resulting in poor oil supply, which is characterized by engine jitter, unstable waiting speed and flameout during driving; In addition, the engine will shake when the oil pump fails. Judge the problem of the oil pump, disconnect the oil pipe, and check the related flow and flow.

2. Circuit problem: Check whether the positive fit is accurate. Generally, abnormal ignition is a positive matching problem; Check whether the spark plug is aging, whether the gap is the same and whether the gap changes; In addition, the abnormal operation of the distributor will also cause engine jitter;

3. Mechanical reasons: check whether there is abnormal noise in the engine running state and whether there is abnormal noise in the valve; Check whether the working condition of the belt is loose.

Automobile engine vibration is a phenomenon that the engine is short of cylinders or one or more cylinders are not working well, which leads to unstable engine rotation and vibration. There are many specific reasons, which need to be judged according to the actual detection and debugging of various types of vehicles.

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