Brake problems

[speedy123]

Hi ,
I have a Pontiac Sunfire 2001.
The problem is that I have breaks, but have to allways keep pumping them
like in a case when the breaks need to be bled. There is no break fluid
leaking. What could this be ?
Do I need a break job front, or back, or both ? Or is the problem with the
master cylinder under the hood ?
Need help to solve this problem.

Thank you.

 

[melsg5]

Have you removed all 4 wheels and examined the calipers and wheel cylinders?
Have you tried beeding?
I assume the master is full?
If bleeding doesn't help and all 4 wheels show no signs of leaking the next step would be master replacement.

 

[speedy123]

Have you removed all 4 wheels and examined the calipers and wheel cylinders?
Have you tried beeding?
I assume the master is full?
If bleeding doesn't help and all 4 wheels show no signs of leaking the next step would be master replacement.

Hi,
Thank you for your great advice.
The problem was the master cylinder after all ,
I changed the master cylinder and the breaks work great
hope this helps someone in the future with the same type of problem .

Thank you.