If you're experiencing poor braking performance, the problem likely lies elsewhere:
* Low brake fluid: Check the brake fluid reservoir. Low fluid indicates a leak somewhere in the system which needs immediate attention from a mechanic.
* Worn brake pads or shoes: These need to be replaced, not adjusted. You'll need to measure the pad thickness (or shoe lining) to determine if replacement is necessary.
* Worn rotors or drums: These can be turned (machined) on a lathe to restore their surface if the wear isn't excessive, or replaced if the wear is too significant.
* Faulty master cylinder: This is a critical component and requires professional diagnosis and replacement if faulty.
* Faulty power brake booster: This is also a complex part and typically requires professional diagnosis and replacement if faulty. Symptoms of a bad booster often include a very hard brake pedal.
* Leaking wheel cylinders (rear drums) or calipers (front discs): These need to be replaced, not adjusted. Look for brake fluid leaks around the wheels.
* Air in the brake lines: This is possible and requires bleeding the brakes. This is a relatively straightforward process but requires two people, usually.
In short: There's no adjustment for power brakes themselves. If your brakes feel spongy, weak, or pull to one side, you need to diagnose the underlying problem – likely worn components or a leak – and address it accordingly. It's best to take your vehicle to a qualified mechanic for proper diagnosis and repair. Attempting repairs without the right knowledge and tools can be dangerous.
