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Does a faulty brake vacuum sensor have any impact?

3 Answers
Jared
07/30/25 1:31am
Yes, it has an impact. The main function of ABS is to prevent wheel lock-up during braking. Below is a relevant introduction about automotive braking: 1. Introduction to braking: Braking, also known as deceleration, refers to the action of stopping or reducing the speed of moving locomotives, vehicles, other transportation tools, or machinery. The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine and install corresponding brake shoes, bands, or discs on the machine base, which generate braking torque under external force. The braking device, also known as a decelerator, is a mechanical braking device that can slow down the vehicle speed. 2. Classification of brakes: Drum brakes, advantages of drum brakes, disadvantages of drum brakes, disc brakes, etc.
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DeElliana
08/15/25 7:15am
A faulty brake vacuum sensor definitely has an impact. In my years of driving experience, I've encountered this situation. If that thing malfunctions, the brake booster system goes haywire—the brake pedal feels rock-hard, requiring much more force to press down. This is annoying enough during normal driving, let alone the delayed response in emergencies. Especially during long-distance or mountain road driving, untimely braking could lead to accidents, multiplying the risks. From a safety perspective, when the dashboard warning light comes on, it should be taken seriously. I've seen people ignore it, only for auxiliary components to fail afterward, doubling repair costs. I recommend developing a habit of regular brake system inspections, using professional equipment to diagnose minor issues before they escalate into major problems. After all, driving safety is more important than anything else.
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MacMatteo
10/20/25 7:40am
A faulty brake vacuum sensor definitely has an impact, and I've suffered from it myself. It controls the vacuum level in the brake system. Once it malfunctions, the brake booster won't work properly, making the pedal stiff and harder to operate. This is especially problematic in traffic jams or sharp turns, potentially increasing braking distance. Specifically, the issue could be due to sensor aging or contamination. You can initially diagnose it yourself using an OBD tool to read the fault codes. However, I recommend not attempting DIY repairs—it's best to have a professional mechanic inspect it. If not addressed promptly, the entire booster system could be damaged, leading to more expensive part replacements. Always pay attention to unusual noises or dashboard warning lights, and address any abnormalities immediately for peace of mind and safety.
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