Brake pedal fading when stopped.

[Ranger Pete]

I have the soft brake pedal like many others. More concerning is the pedal fads while I'm stopped at red lights. If I apply light to moderate pressure on the pedal the truck starts creeping forward. I am not letting up on the pedal. Also, if I hold the pedal down with heavy pressure it gradually goes down further. Is there an easy diagnoses?

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[airline tech]

I have the soft brake pedal like many others. More concerning is the pedal fads while I'm stopped at red lights. If I apply light to moderate pressure on the pedal the truck starts creeping forward. I am not letting up on the pedal. Also, if I hold the pedal down with heavy pressure it gradually goes down further. Is there an easy diagnoses?

This is a known issue (from the factory) - that the dealers and ford will say - Its (NORMAL)
However - if you perform a full complete system bleed - ABS Module + All 4 Corners, you will find that there is (Air) in the system - with a great amount noted in the RR.

This will bring the brake pedal up and you will note - that it will NOW be above the gas pedal while holding the brake.

However - NOTE that this system still will drop on heavy brake pressure, it takes a while to adjust to the feel over other brake systems.
But bleeding the system - greatly alters the feel and response.

I bled mine with only 900 Miles on the truck and no issues since.

Same as you experienced lunging forward issues while on brake - found that the right side of my foot was catching the edge of the gas pedal while also on the brake - due to a combination of air in the brake system & close proximity design of the pedals.
The air in the system lets the brake pedal drop lower and when it does, if your foot is off the edge of the brake pedal it will catch the gas pedal with it.

Another member - noted that the possible reason for this design is due to the ROW Ranger has the manual option (with a clutch pedal) added and they still kept the design layout without it.

 

[Dereku]

Yup air in the lines for sure. Or bad booster, but not common

 

[lariat]

This is a known issue (from the factory) - that the dealers and ford will say - Its (NORMAL)
However - if you perform a full complete system bleed - ABS Module + All 4 Corners, you will find that there is (Air) in the system - with a great amount noted in the RR.

This will bring the brake pedal up and you will note - that it will NOW be above the gas pedal while holding the brake.

However - NOTE that this system still will drop on heavy brake pressure, it takes a while to adjust to the feel over other brake systems.
But bleeding the system - greatly alters the feel and response.

I bled mine with only 900 Miles on the truck and no issues since.

Same as you experienced lunging forward issues while on brake - found that the right side of my foot was catching the edge of the gas pedal while also on the brake - due to a combination of air in the brake system & close proximity design of the pedals.
The air in the system lets the brake pedal drop lower and when it does, if your foot is off the edge of the brake pedal it will catch the gas pedal with it.

Another member - noted that the possible reason for this design is due to the ROW Ranger has the manual option (with a clutch pedal) added and they still kept the design layout without it.

"The air in the system lets the brake pedal drop lower and when it does, if your foot is off the edge of the brake pedal it will catch the gas pedal with it."

This happens to mine all the time. I am accidentally on the gas and brake pedal at the same time. This is such a red flag that should't be happening. Have people been reporting this to NTSHA - it's a total safety issue based on where the pedal is. The brake pedal is supposed to be higher than the accelerator.

 

[Ranger Pete]

Had system bleed at a local shop. Pedal feels better and no fading. They told me there was air in the right front.

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