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.
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HOMESERVICE MANUALSSUBARU1998FORESTER BASEREPAIR AND DIAGNOSISBRAKESMECHANICAL - HYDRAULICDISC & DRUMTESTINGPOWER BRAKE UNIT
1998 Subaru Forester Base
Power Brake Unit
1998 Subaru Forester BaseSECTION Power Brake Unit
- Start engine, run it 1-2 minutes, and then turn it off. Depress brake pedal several times using normal pedal force. Each time pedal is depressed, pedal height should increase. While brake pedal is depressed, start engine. Pedal should move slightly toward floor. Continue to hold brake pedal down and turn off engine.
- Continue to hold brake pedal down longer than 30 seconds. Brake pedal height should not change. If pedal goes slowly upward, a vacuum leak exists in power brake system. Inspect brake vacuum check valve for proper operation. If check valve is okay, replace power brake unit.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.