Many driving friends started their cars in the morning in autumn and winter and drove on the road. They found that the engine of the vehicle was shaking a lot. They went to the 4S shop to check and found no problems.
The weather has turned cold recently, and he also had such a problem while driving. He carefully inspected the vehicle and consulted some car experts, and found the reason: it was due to the low temperature in winter, when the ignition was on. When the gasoline does not fully enter the cylinder, the ratio of the combustible mixture in the cylinder does not meet the standard, the air is scarce, and the gasoline is glued at the valve, thus causing the engine to shake. Mr. Qin solved this problem with two simple steps:
The first step is to clean the intake port and clean the gasoline glued in the intake port;
The first step The second step is to replace the oil with special oil for winter. The problem went away.