问:发动机打开时,制动踏板进入地板

2016年6月9日

My brother has a 2000 Blazer. When the car is on, the brake pedal has no brakes and they get down to the floor. But when the car is off, the pedal feels solid. I'm not sure if I should change all calipers or check for air.

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The first thing you’d want to do of course is pull off all the wheels and look for the leaks. But if you have no leaks, yours is the classic sign of a不良制动助推器。当制动助力器变坏时,您会驶出引擎,并会注意到踏板很好而且很难。当您启动引擎时,它们就向右走到地板上。如果这是您看到的,那可能是制动器助推器。但是,首先检查泄漏,因为制动器助推器非常昂贵,而且穿上漏洞。如果您想首先要查看此问题,那么Mechanic的技术人员可以到您的办公室来万博体育入口检查您的刹车and replace your brake booster if necessary.

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