My daughters 2004 Aveo has 54,000 miles, a leak has started in the brake master cylinder. The leak is actually coming from around the bottom back (nearest the firewall) brake line fitting in the master cylinder. The brake line connects to the master cylinder via a large black fitting of some sort. I do not know what the black fitting is or does?
Anyway the leak is where this black fitting goes into actual master cylinder body. Anyone else ever has this issue on their Aveo?