Please see this same thread in the 2004-Present Forum For more info!!!!



From day one, my F150 has had a soft brake pedal. You pump it once and it’s solid as a rock! I took it in to my selling dealership and the service manager and I test drove a used 06 on the lot to see if it was just an 06 thing. I was really hoping that this used reference truck didn’t have the same issue as mine. Thankfully it didn’t (have the same soft pedal). The reference truck had a nice solid pedal. David informed me that he would “consult” with the engineers and get back to me. A week later he called and said that the engineers couldn’t really isolate any one component but offered a few suggestions. I dropped off the truck yesterday and they ran a diagnostic on my brake booster. It tested fine. They replaced the master cylinder and adjusted the actuator rod (located between the booster and MC). I picked it up tonight and PRESTO! Brakes feel just as they should. FIRM ON THE FIRST PRESS !!!!!!

I know that there were a few here that have already had the MC replaced and still have the soft pedal. I can say from experience that if the MC and brake booster have already been replaced, it more than likely is the actuator rod. I installed a Wilwood aluminum race MC in my mustang and had to adjust the actuator rod several times before it felt right. Adjust it too far out and the brakes are actually engaged before ever touching the pedal. Adjust it too far in and the pedal feels very soft, like air in the lines. One could easily make this adjustment in their garage, but why bother if it’s under warranty!
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mine is a 2004 with soft brake pedal. I need a picture of the actuator rod location in hmtl format that I would be able to open. My computer will not open the pictures on the forum. Please help......someone.
Ferrell

 

You can't see the pics in this thread?
https://www.f150online.com/forums/20...-resolved.html