Help 1994 Grand Prix 3.1 sedan master cylinder problems?? (antilock breaks)

[kenpo2]

The break pedal just went to the floor. Luckily did not get into an accident. This is the second time something like this happens in less than 2 years.

I had to replace the master cylinder twice.

Is there a problem with this braking system?

Was there a recall that I was not aware of?

SHould I take it to a dealer or is this something any mechanic can repair. The two times it happened I took the car to local mechanics.

Please advise.

Thanks

Alex

[decrepid]

My first guess would have been the Master Cylinder, but replacing twice would have ruled that out. My next guess would be a malfunction with your ABS system, at least if it the brake pedal thing doesn't happen every time you push on it. Sounds like you might want to find a reputable mechanic or just bite it and take it into a dealer. the only other thing I would suggest is to inspect the brake lines for a leak. Hope that helps.

[kilroypr]

I agree, befor checking the master cylinder you should check for leaky lines. This has happened to me twice and my Z-34 even tought has disc brakes on all corners had seals problems on the rear calipers and the behaviour was just what you present here. Check for leaks first.