after cleaning my throttle body my gas peddle is kinda hard to press now.

2001 2.3 Duratec

 

Spray some lube on the throttle shafts and in the throttle cable sheath, take off the throttle cable at engine end and hold it up, spray lube inside the sheath and let it run down inside, move the cable back and forth, should be EASY to slide in and out

Check throttle linkage with cable off, should be stiff because of the spring but smooth not "sticky"