I'm getting a light pop when I first push the brake pedal...sometimes it's going down a ways before it pops... I can almost always get it to pop if I'm slightly pushing the pedal to the side and down. I have the adjustable pedals... haven't moved them and tried... but wondering if anyone else has had this issue? Only 39XX miles on the truck. OH the info....
08 FX4 Screw 5.4 auto on the console, 20"s, leveling kit.

 

Not that this will help "Stop the Pop" but you are not alone. My pedals popped for the first few days I had the truck but after adjusting them a few times between my wife and I using the truck, haven't heard it since.