1997 f-Super Duty brake pedal travel long

[jgerber]

After the truck sits, the brake pedal has a very long travel, until pumped up.
Already replaced hydro booster and pump. Any Ideas? Bled system, no leaks found either. Diesel engine, dually rears

 

[mrfixit]

Sounds to me like the master cylinder itself. Or there is air in the lines that you didn't get when bleeding... have you tried a complete line flush? it should be done every 30k or so, if I remember correctly.

 

[blacksnapon]

Yeah, bleeding is definately on your horizon!

 

[6L PWR]

Yeah, bleeding is definately on your horizon!

Think he's gonna bust a knuckle turning a wrench?? That's why I take mine to a pro. Everything he does that draws blood makes the hourly rate go up, so I always pray for his knuckles.