LOOK AT THE TOP OF YOUR BRAKE PEDAL---SEE IF THIS IS IMPROPERLY INSTALLED OR IN A BIND

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A LARGE HAND MIRROR AND A FLASHLIGHT MIGHT LET YOU SEE WHAT'S GOING ON----PRIOR TO YOU LAYING ON YOUR BACK AND MESSIN' WITH IT....SORTA A CONTORTIONIST KINDA THING, GETTING BOTH ARMS UP IN THERE!

THERE'S POSSIBLY A NYLON WASHER AND "BOBBY-PIN" LOOKING RETAINER HOLDING IT IN PLACE

IN THE MIDDLE OF THE "BLOCK LOOKING THINGEE" (SEE LINK PIC) THERE IS A PLASTIC PART THAT HAS A SPRING BEHIND IT---"OFF" IS WHEN THE PLASTIC BLOCK IS SPRUNG OUTWARD

KEEP ME POSTED

THE MEDIC