With the brake pedal fully released, measure the distance from the top of the pad to the floor, ensuring to pull back the carpet to position the ruler against the floor. If the height is not as specified, it must be adjusted by loosening the locknut in front of the power
Brake Booster clevis and turning the input rod until the correct height is achieved, followed by tightening the locknut. After adjusting the pedal height, check the freeplay by pressing down lightly on the brake pedal and measuring the distance it moves freely before resistance is felt; this should be within specified limits, and if not, adjustments are necessary by loosening the locknut for the brake booster clevis and turning the booster input rod until the correct freeplay is reached, then tightening the locknut. After checking and adjusting the pedal released height and freeplay, check the pedal depressed height by pressing the brake pedal fully with the engine running and measuring the pedal pad-to-floor distance, ensuring to reposition the carpet for accurate measurement; if the minimum depressed height is below the specified limit, inspect the brake system for leaks or damage.