I had new tires put on my wifes '96 SE and ever since the brake pedal has been soft, goes to the floor. No problems before the car went in for tires. New front pads and rotors and rear pads done last summer. Returned it to the shop and they bleed the system, but the problem was still there. Had them install a new master cylinder, better, but still not right. No leaks detected thoughout system, everything seems to be sound.
Any ideas????

1996 SE
61,000 mi
confused