Do you know why car cold starting unstable and heavy duty?

This is a problem that you might encounter on a regular basis. after the start of the cold car, the engine speed is unstable, and the sound of the engine sudden noise is heard. The exhaust gas emitted by the engine has a big smell of oil. Long may take a few minutes, short may be a few seconds, in fact, most of these are caused by the following two main reasons, and today to talk about the maintenance knowledge.

One, throttle, air flow meter an excessive amount of carbon deposition

Throttle and air flow meter remains comparatively straightforward to dirty, most of the cars ar currently electronic throttle, to a small degree coke could have an effect on it, an excessive amount of accelerator carbon accumulation can cause the throttle card, serious power Decline, idling, etc.

The air flow meter is dirty, causing the air flow signal to be erroneous. The intake air amount determines the fuel injection amount, which directly leads to inaccurate injection. Not only the fuel consumption will increase, but the power will be seriously insufficient! Therefore, it is very important to change the air filter, and don't forget that the best 30,000 kilometers is cleaned once.

Second, the cylinder combustion chamber, piston deposit too much

The area of the combustion chamber of the cylinder is simply too a lot of carbon, which is able to have an explicit surface assimilation result on the gasoline! therefore once the ignition starts, the time can extend a trifle bit. additionally, there's an excessive amount of coke, most of them can kind with the valve, seal on top of, indirectly leading to cylinder pressure isn't enough! Cold automobile begin is simple to idle, hot automobile like.

There could also be several reasons why the car's idle speed could also be unstable, like vacuum leaks, broken spark plugs, etc., however the on top of issues could occur once you run cardinal or twenty thousand kilometers. it's positively not a broken half. it's going to be that maintenance isn't perpetually thorough.

To remind everyone to do a good job in maintenance on engine valve, we must pay attention to the engine's carbon cleaning, throttle cleaning, the more kilometers to run, the more aware of its importance. Good centerless engine valve cutting machine can make the engine valve match exactly.