Pontiac Grand Am spongy brake issue persists after master cylinder replacement and brake adjustments on Pontiac Grand Am

Some Pontiac Grand Am owners report experiencing a spongy brake feel even after replacing the master cylinder and making brake adjustments. These issues may stem from air trapped in the brake lines, which can hinder brake performance, necessitating thorough bleeding of the system. Additionally, incorrect installation of the master cylinder can lead to leaks and a spongy pedal, so verifying proper seating and sealing is essential. Brake fluid contamination from non-recommended fluids can also affect performance, emphasizing the importance of using the correct brake fluid. Furthermore, faulty components within the brake system, such as the brake booster, lines, hoses, calipers, pads, or rotors, may contribute to the problem, making it crucial to inspect these parts for wear or damage. A comprehensive inspection by a qualified mechanic is recommended to identify and resolve these persistent brake issues.