Why Is My Brake Pedal Hard And Car Won'T Start? [Solved]

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Why Is My Brake Pedal Hard And Car Won’T Start? [Solved]

Exhausted brake vacuum: Most modern cars have power assist, which relies on a brake vacuum to operate. If you’ve been pushing on the brake pedals without the engine running, it could be exhausting the reserve vacuum present in the car when it’s off. This will cause your brake pedal to go stiff.2 May 2022

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