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Why Is My Brake Pedal Hard After Replacing Brake Booster? [Solved]

Wrong-size parts: If your booster has been replaced recently, but your brake pedal is still hard, it could be that the replacement parts were the incorrect size. Adding a brake booster of the wrong weight, or a vacuum hose of the wrong size is a common mistake among inexperienced mechanics.

HARD Brake Pedal - How to check if your BRAKE BOOSTER is GOOD or BAD

EASY and most common way to test

Hard Brake Pedal: Is Your Brake Booster the Problem?

Does your vehicle have a

Sinking/Spongy Brake Pedal -With ABS SYSTEM?? Nothing Works? Watch Fixed!

Sinking/Spongy