- Brake fluid leak: Check for any leaks in the brake fluid lines or connections. A leak can cause the brake system to lose pressure and not function properly.
- Air in the brake lines: If there is air in the brake lines, it can compress and cause the brakes to feel spongy or not work properly. Make sure to bleed the brake system thoroughly to remove all of the air.
- Faulty brake booster: The brake booster helps to amplify the force applied to the brake pedal. If the brake booster is faulty, it can cause the brakes to feel spongy or not work properly.
- Faulty ABS module: The ABS module controls the anti-lock braking system. If the ABS module is faulty, it can cause the brakes to lock up or not work properly.
- Faulty proportioning valve: The proportioning valve distributes brake fluid to the front and rear brakes. If the proportioning valve is faulty, it can cause the front brakes to lock up or the rear brakes not to work properly.
To troubleshoot the problem, you should first check for any brake fluid leaks. If there are no leaks, then you should bleed the brake system again to remove any air. If the brakes still do not work properly, then you should have the vehicle inspected by a qualified mechanic to diagnose the problem.
