13 does the front wheel feel a little shaky after Crown four-wheel alignment?
1, the engine has more carbon deposits. Too dirty throttle or too much carbon deposited in the fuel injector are the most likely reasons for car jitter. When the car starts, the fuel on the carbon deposit will be sucked into the cylinder by the engine and burned. Because the combustible mixture of the engine is high and low, the body will shake during cold start. As long as the throttle and other oil circuits are cleaned on time, this problem will not occur.
2, ignition system failure. This is also an important reason for the body shake. When there are problems with spark plugs, high-voltage lines and ignition coils, the body of the starting car will also shake. At this time, you can check whether the spark plug has too much carbon, and you need to replace it with a new spark plug if necessary.
3. The oil pressure is unstable. After the oil supply pressure of the oil pump is abnormal, the value of the air pressure sensor is inaccurate and jitter will also occur. You can check the oil pressure at this time. If it needs to be replaced, it should be replaced in time.