The weather is getting hotter and hotter, the noise of automobile engine is getting louder and louder, the water temperature is getting higher and higher, and the horsepower is obviously reduced. Why?

There are two basic causes of engine noise:

There is too much carbon in the engine.

Improper use of engine oil or unclean engine oil.

In addition, engine noise is mostly caused by abnormal engine noise.

The causes and solutions of abnormal engine are as follows:

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

Engine claw pad 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.

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.

Engine knock. Excessive carbon deposition inside the engine or unqualified fuel. Remove carbon deposit and replace fuel.

Abnormal sound of valve. Especially after the cold car hits the car, the valve will beep, and then the hot car will be fine, because the oil is deposited in the oil pan and the engine is not pressed up in time when it starts. But if the valve keeps ringing, it is necessary to consider changing the "thick" engine oil (please refer to how to choose the right engine oil for how to choose the engine oil).

Engine backfire fault. The engine will have a "poop-poop" sound, mostly because the valve has too much carbon deposit or the timing adjustment is incorrect. Remove the carbon deposit on the valve and adjust the valve timing.

The engine stalled. One cylinder does not ignite, and most of them are spark plugs or ignition modules, which can be replaced.

9. Abnormal sound of bearing. When the bearings such as engine tensioner, idler and generator are abnormal, there will be a regular "buzzing" sound, which can be solved by replacing related parts.