The clutch engages the engine to the transmission, and over time the parts begin to wear. If you feel there is no resistance in the vehicle for about three seconds after you push the clutch, the clutch will need to be adjusted. The 2005 Ford Focus has a hydraulic clutch, making it real simple to adjust the clutch at home.
Take the cap off the clutch fluid reservoir and check the fluid level. If the reservoir is below three-fourths, refill the reservoir with brake fluid and close the cap on the reservoir.
Lift the clutch pedal with your foot and hold it up for a minute. Because this is a hydraulic clutch, it self-adjusts in this position.
Check the adjustment to see if you are satisfied. If you're not satisfied, look under the dash and locate the stop-nut on the clutch arm that attaches to the clutch pedal.
Loosen the nut with a wrench and reposition the pedal in the desired position. Tighten the nut on the clutch arm and test the clutch again.
Loosen the adjustment nut on the clutch master cylinder with a wrench if you are still not satisfied with the clutch adjustment and set the adjustment rod. Lock the adjustment rod back into place by tightening the nut.