New master cylinder bench bled no leaks in system.
F350 brakes go to floor.
Check the brake fluid level.
If the fluid is full then continue onto brake fluid is full down further in this guide.
1 leak from brake line or brake caliper.
The brake pedal goes to floor when engin is running.
This article applies to the ford f 150 2004 2014 and f 250 super duty 2005 2014.
One of the reasons is the brake system loses pressure from an external brake fluid leak.
Brakes problem 1994 ford f350 two wheel drive automatic 90000 miles i have a f350 dually diesel.
The shop i had the work done at has no idea.
The brake pedal will slowly under pressure go to the floor.
It will stop the truck but the longer you apply the brakes the more it goes to the floor until eventually it is on the floor.
The leak may coming from a brake line or one of the brake calipers.
Using a flashlight check the level of the fluid or just remove the lid of the reservoir and look inside.
I have a 93 ford f350 diesel truck.
Technically there are two main causes that would make the brake pedal sink all the way to the floor.
Anytime you have a brake pedal that goes to the floor raise the hood and locate the brake master cylinder s reservoir.
That didn t solve the issues so i put in a new brake booster.
Full system bled three times all brakes adjusted and in good condition.
Ok when motor is off.
My brake pedal is very soft.
The brakes were working ok but after bleeding the brakes all around i am now getting air in the system a read more.
Reasons your brake pedal goes to the floor.
I have found no leaks.