What's wrong with Cadillac cts cold car without brakes?

Cold car 1 causes of poor braking. Because the engine idles at high speed when the temperature is low, the vacuum generated by the engine is not enough, just like a syringe. If there are two needles, it means that the engine is rotating and the piston is moving up and down. When the piston turns to the top, that is, the air in the needle tube is completely exhausted, and the engine is still moving downward, if the right needle is blocked, the left needle will generate vacuum without air intake, but the right needle is not tightly closed, so the left needle will generate vacuum. 2. Also, if the speed is slow, the steering wheel will be' killed', and the air conditioner will be turned on, the car will burn badly (lack of cylinder), and the engine will wear too much, which will not produce enough vacuum and the brakes will harden. 3. Meng Hui, a technician of Hangzhou Zhongao Automobile Palace, said that "the brakes are not working properly" is really related to the automobile displacement and the weather. "At present, most cars use a component called a brake booster pump. Its working principle is that vacuum will be generated inside the booster pump through the operation of the engine. When the driver steps on the brake, the air pressure generated by the vacuum will help. This is why when the engine is turned off, stepping on the brakes will feel particularly heavy, precisely because of the loss of the help of the brake booster pump. " Gong explained that the work of the engine brake booster pump plays a key role. However, due to the small displacement vehicle type, the engine power is not enough. In addition, when the owner repeatedly steps on the brakes (for example, reversing into the warehouse), the engine can't take care of the brake booster pump, which leads to the failure of the brake booster pump. At this time, the brakes are particularly heavy, and most people feel as if the brakes have failed. At present, it seems that only "Shark Car Treasure" can solve it.