问：RPM波动，发动机在交通信号灯处关闭
你好。我的宝马有一些问题。我更换了磨损的风扇皮带。我和皮带轮一起安装了一个新的水泵。问题在于，现在似乎波动了很多。当我坐在车上而没有移动一段时间时，例如在红灯处，有时会关闭。转向也很难转动。发动机似乎没有过热。另外，据我所知，没有泄漏。您知道如何解决这个问题吗？ Thanks.
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You may have a皮带张紧器不足以使皮带上的张力足够。动力转向的流体也可能很低。皮带可能松动，需要更紧密地调节。
The idle problem may be due to the intake hose from the air filter to the throttle body. It may have a leak or is not sealed well, causing an air leak and the running issue. Have a certified mechanicdiagnose your stalling symptomsand scan the computer for codes. Once this is done, a proper repair can be made.
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