After replacing the Front Rotors, calipers, and brake lines on my 2005 F150 Super Crew I have spongy brakes. I have also replaced the master cylinder. I have bled the brakes as well as a reputable repair shop has done the same. We are both at a loss as to what is wrong. The ABS light is on now after the replacement of these parts. This issue did not exist prior to changing these items. This was done to hopefully eliminate brake shudder that I have been experiencing for some time. Any info would be greatly appreciated.

 

You still have air in the system. The only other cause would be spongy flexible brake hoses and that doesn't happen suddenly.

 

You probably need to bleed the abs unit with a scan tool. Also, scan for abs codes and see what code is there.

 

Saxman, thank you for your response.

 

f31951truck Thank you for your reply and that is my next course of action.