Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Power Brake Unit: Installation
Ensure power brake unit push rod length is correct. See POWER BRAKE UNIT PUSH ROD under ADJUSTMENTS. Bench bleed master cylinder. Install master cylinder with NEW gasket. To complete installation, reverse removal procedure. Bleed brake and TRAC system. See BLEEDING BRAKE SYSTEM . Ensure brake pedal height is correct. Refer to BRAKE PEDAL HEIGHT & FREE PLAY under ADJUSTMENTS. Retest power brake unit. See POWER BRAKE UNIT TEST .
Ensure power brake unit push rod length is correct. See POWER BRAKE UNIT PUSH ROD under ADJUSTMENTS. Bench bleed master cylinder. Install master cylinder with NEW gasket. To complete installation, reverse removal procedure. Bleed brake system. See BLEEDING BRAKE SYSTEM . Ensure brake pedal height is correct. Refer to BRAKE PEDAL HEIGHT & FREE PLAY under ADJUSTMENTS. Retest power brake unit. See POWER BRAKE UNIT TEST .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.