hey my dads 2007 quad cab 4x4 has a serious brake issue as in they go to the floor.no leaks visible,feels like a bad master cylinder,but am unsure if ABS system could cause same affect.the truck has just over 36,000 miles on it,had to have swaybar links and 1 tierod end replaced under warrentee not very happy with issues this early on.not built like 1st generation from what I can tell.any response would be great,thanks

Sounds like a bad Master Cylinder, and dash lights on? Happen every time? Fluid look black? (I know its a 07)

my 05 quad cab 4x4 has had the following in 35,000 miles.

both front wheels bearings
both front sway bar ends
new rear brakes, drums turned.
front rotors and pads, only thing covered by warranty.


rear drums are warped again

no dash lights fluid is clean and clear

if the question is will ABS caues these symptons ? No

sounds like an internal master cylinder leak.