1989 626 Brake problems

[tazzmann]

Hello everyone, I have a question about the brakes on the 626. Recently, the brakes have been going to the floor, but only while driving (not sitting still) and only while the car is on. I have replaced the master cylinder, but am now thinking maybe I need to replace the calipers or wheel cylinders. If the car is sitting still or off, I can pump them up hard and they will stay that way, but if the car is running and driving down the road, they will go to the floor until I pump them up. Then they will last until I release them and go down the road for a few seconds. Any thing I might be missing?

Thanks!

 

[Jedidiah55]

check to make sure your leaking any brake fluid, and then i would inpect your lines and bleed the brakes and test it and then you should probably change the cylinders

 

[tazzmann]

Nope. No leaks that I can see, brake lines look good. Master cylider replaced. I had the wife go a head and pick up the calipers and wheel cylinders, so I guess I will be doing that tonight. Hopefully, it will resolve my issue.