Adjusting the height of your car's clutch pedal is not nearly as complex at it may seem. All you need to make the desired adjustments is a set of metric open-ended wrenches, a 12-inch ruler and a flashlight. Once you adjust the pedal stop bolt (or cruise control switch), all you have to do is adjust the push rod so there is enough play in the pedal. With the right instruction, you can adjust your clutch pedal to the perfect height desired.
Use the appropriate-sized wrench to loosen the adjusting bolt (cruise control switch), which will raise the pedal up to the desired height. Seven inches is the standard size for many vehicles by default.
Adjust the clevis pin's free play by adjusting the push rod located behind the pedal. Use your flashlight if you are unable to see the rod clearly. Loosen the locknut on the push rod with the wrench until you have the desired pedal play without pushing in the rod. Re-tighten the adjustment bolt you loosened in the last step
Check to verify the pedal's free play is at the desired level. The amount of free play before hitting any resistance is often set to .04 to .12 inches. If you are not happy with the level of free play, repeat steps one and two again as necessary, until you get it right.
Check to see the pedal releases (or reaches its disengagement point), after 2.76 inches or more. The disengagement point is when the pedal loses its resistance once released from the firewall to its default position. Repeat steps one through four to get the desired height and functionality of the clutch if you are not content with the first attempt.
Although these steps were based off the Eclipse's clutch adjustment procedure, clutches can be configured by making the appropriate settings with the adjustment bolt (or locknut) and push rod.
The process of adjusting the clutch's height may vary slightly, depending on make and model of your vehicle.