What causes intermittent shaking in a Nissan 1.6 engine when hot?

[KevinLynn]

Nissan 1.6 engine intermittent shaking when hot can be caused by the following reasons: Clogged fuel injectors: After prolonged use, fuel injectors may become clogged. One reason is the long-term accumulation of carbon deposits, which can block an injector and cause cylinder misfire symptoms. Another reason is the gradual aging of injectors due to prolonged exposure to high-pressure gasoline, leading to a series of issues. If a fuel injector is clogged, it may result in "cylinder misfire," causing intermittent shaking in the car. Ignition coils and cylinder wires: Each cylinder's spark plug corresponds to an ignition coil and cylinder wire. If these components fail, the spark plug won't fire, and the cylinder won't operate, leading to cylinder misfire symptoms. Cylinder misfire typically causes intermittent shaking in the car. Spark plugs: Spark plugs need to maintain an operating temperature between 450°C and 870°C. If the temperature falls below 450°C, carbon deposits can easily form, resulting in intermittent shaking.