Vehicle is a 2013 Edge (bought it used 3 years ago & it has been a crappy vehicle) & yesterday my wife was driving & applied the brake pedal & it went all the way to the floor & labored to stop - she did not try to pump it up. Then everything returned to normal. I drove it after she got home & brakes seemed normal. Earlier today she drove it again, & no issues.

The brake booster went bad about a year ago (they basically ALL do on Edges & some other Phords) & there was a TSB on it, so Phord replaced it for no charge. *There are multiple things that fail on these vehicles prematurely & Phord knows about them, so they replace them well after the warranty period, but they are not at recall level.

Anyway, any ideas on the braking issue?