Chevrolet Sail 1.4 cold car is difficult to start. What is the reason why the engine sometimes shakes badly after starting? This car has only driven more than 20 thousand kilometers. How come...

One of the most common reasons for the difficulty in starting a cold car in the morning is the failure of the fuel injector. As the weather gets colder and colder, customers often mention that it is difficult to start a cold car in the morning when maintaining their cars, and it needs to be fired several times continuously. Even if the engine runs at idle speed after starting, it will be unstable, shake or even turn off. In daily maintenance, the most common fault is that the engine nozzle is too dirty, which leads to blockage or seizure, resulting in too lean mixture when the cold car is started.