7 Symptoms of a Bad Brake Booster Check Valve | How To Know If Brake Booster Check Valve is BAD

When the braking system starts to underperform, identifying the cause is very important to maintain your safety on the road. Inadequate braking capability has a significant risk, particularly if it occurs unexpectedly. A potential reason behind less braking performance is a faulty brake booster check valve which we’re going to talk about in this video.
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[@sirenswhispering]

i bought a new jegs brake booster and master cylinder, i renew all the hoses, drums, and pads with lines, and there is no any leaking, my engine is 4.3 stock with holley sniper 1. I wonder why it happened sometimes, for example i drove about 45 min without any problem, when i wanted to park my car, suddenly i lose a brake and become stiff and immediately i push it again came back to normal. I did all of your test and could not find problems, as i said sometimes it will happen.

[@ryanlindley6476]

IT DOES NOT DRAW VACUUM FROM THE ATMOSPHERE, IT GET VACUUM PRESSURE FROM THE MANIFOLD OR SOMEWHERE ELSE ON THE INTAKE CREATING VACUUM PRESSURE FROM THE PISTONS PULLING AIR IN ON THE INTAKE STROKE OR IN A SUPERCHARGED ENGINE YOU NEED TO GET VACUUM FROM THE FRONT OF THE SUPERCHARGER SINCE YOU HAVE A POSITIVE PRESSURE INDUCTION SYSTEM RATHER THAN A NEGATIVE PRESSURE INDUCTION SYSTEM.

[@fixit3879]

Thank you for the comment.

[@joshscott8678]

So if it doesn't get air from the atmosphere there must be canned air. Guess thief's got mine

[@morfeo904]

Ford Edge defect 😕 Press the spongy brakes and you hear a sucking or hissing sound. I guess that is the faulty vacuum .

[@fixit3879]

Thank you for your feedback.

[@hoopallday9469]

Let my ex drive my genesis coupe and it had a faulty brake booster andddddddd he crashed it

[@fixit3879]

Brake pedal can be hard to press without the brake booster. I am sorry about the car crash. Thank you for sharing.

[@enidra5388]

bad explanations

[@fixit3879]

Thank you for your feedback.