Spongy brake pedal

[Nox029]

Help appreciated. 13 Nox 3.6

All my problems started after replacing front calipers, passenger side was dragging so I replaced both calipers and hoses with oem parts from dealer.

bled all four corners myself - spongy
Bled again with a helper - spongy
Used a scan tool for ABS bleed - spongy

Upon further investigation I noticed a leak behind master cylinder so I replaced it. Bench bled it before installing.

Repeated brake bleeding procedure again and again still have a spongy pedal

Ps. Brakes pedal didn’t go to floor before

 

[corvairbob]

you may have air in the abs and that will need to be bleed some scanner can do it and maybe you can do it mechanical.

here is ac delco procedure

Bleeding ABS Brake Systems

Why air bubbles trapped inside an ABS brake system cause problems and how to bleed the ABS system to get rid of the air.

www.aa1car.com