There is a "da da" sound in the car engine. What is this?

Generally, it is the sound of a valve or nozzle, and the carbon canister solenoid valve also has this sound, but the sound is brittle.

Identification method: when idling, give a little oil to see if the frequency has changed. If the frequency is constant, it is the sound of the solenoid valve. If the frequency changes, there should be abnormal noise at the valve. If you can't hear clearly in the car, it's no big problem. There will be a corresponding clicking sound of the vehicle, one is the sound of the throttle working, the other is the sound produced by the valve, and there is a similar sound, that is, the sound of the timing chain, but unlike the clicking sound, there is a kind of glaglagla sound.

Extended data:

The cause of clicking sound

1, the engine lower guard plate screw is loose. Common faults, tighten or adjust the engine lower guard screw.

2. The engine claw pad is aging. Claw pads support the engine and can only be replaced after aging.

The plastic parts in the engine compartment are loose. Such as an engine cov plate, an intake pipe and that like. , you can fasten it.

4. Abnormal sound of engine belt. Include a booster belt and a generator belt. , belt aging, too loose or too tight will produce abnormal sound, so change or adjust the tightness.