To change the idle arm, you will need the following tools Universal Steering Linkage Puller (J24319-B), Steering Linkage Installer (12 mm) (J29193), and Steering Linkage Installer (14 mm) (J29194). Start by lifting the car and take off the engine protection shield if applicable. Next, unscrew the idler arm ball stud nut but avoid reusing it and then unplug the idler arm off the relay rod using Universal Steering Linkage Puller (&24319-B). Go ahead and remove the idler arm frame bolts and nuts and then the idler arm from the vehicle. For installation place the new idler arm on the frame, then put the frame bolts and nuts and tighten the bolts to 99 Nm (73 ft. lbs.). Connect relay rod to idler arm ball stud, seal should be on the stud, use Steering Linkage Installer (12mm) J29193 or Steering Linkage Installer (14mm) J29194 to seat the tapers, tighten to 54Nm(40ft lbs). Assemble a new idler arm ball stud prevailing torque nut to the idler arm ball stud and provide a torque of 62 Nm (46 ft. lbs.). Finally, if equipped, reinstall the engine protection shield, resituate the vehicle, and perform a wheel alignment check.