OEM 2007 Toyota Yaris Coil Springs

2007 Toyota Yaris Parts Questions & Experts Answers

• Q: How to service and repair the front shock absorber and coil spring on 2007 Toyota Yaris?

  A: Service and repair of the front shock absorber with coil spring begins with disconnecting the negative battery terminal cable. Start by taking off the front wiper arm head cap then proceed to detach both the left and right front wiper arm as well as blade assemblies. The service of front shock absorber with coil spring starts with unhitching the negative battery terminal connection. Removing the hood to cowl top seal and the cowl top ventilator louver LH applies to hatchback vehicles whereas sedan models require the removal of cowl side ventilator sub-assemblies LH and RH and the front air shutter seal. Remove the cowl top ventilator louver sub-assembly then proceed to eliminate the front wiper motor and link followed by the outer cowl top panel. Separate the front stabilizer link assembly by removing the nut while using a socket hexagon wrench 6 if required to detach it from the shock absorber. Detach the front flexible hose while decoupling it with or without ABS by removing the bolt. The front suspension support dust cover and the front shock absorber with coil spring can be detached from the steering knuckle by first loosening both nuts and bolts before ensuring the bolt remains stationary. A socket hexagon wrench 6 should be used to secure and remove the shock absorber rod's nut until you can eliminate the No. 2 suspension support along with the front shock absorber with coil spring from the vehicle. Disassemble the front suspension support sub-assembly and the front support to front shock absorber nut by applying Special Service Tool: 09727-30021 (09727-00010, 09727-00021, 09727-00031) for compressed coil spring installation without using an impact wrench. A press and brass bar assist in extraction of the upper coil spring seat, spring bumper, upper coil spring insulator, coil spring, and strut mounting bearing. To inspect the front shock absorber you should compress the rod and extend it while testing for unusual resistance or sound before making a replacement. Reassembly begins by installing the strut mounting bearing onto the coil spring seat upper then compressing the coil spring using Special Service Tool: 09727-30021 to mount it on the shock absorber while maintaining the smaller diameter spring at the top position. The shock absorber should receive the upper coil spring seat installation together with the front upper coil spring insulator and spring bumper. Through No. 2 suspension support mount the installer to install a new nut before placing the front shock absorber combined with coil spring onto the steering knuckle then securing it using two bolts alongside two nuts. Reinstall the front flexible hose in a straight-forward manner before you install the front stabilizer link assembly with its nut. Use a socket hexagon wrench 6 to fully tighten the front shock absorber with coil spring during reinstallation of the front wheel. To finish the installation process use the front suspension support dust cover together with outer cowl top panel and cowl to register duct sub-assembly (for hatchback), front air shutter seal (for sedan), front wiper motor and link and cowl top ventilator louver LH (for hatchback) and cowl top ventilator louver sub-assembly and hood to cowl top seal (for hatchback) and cowl side ventilator sub-assemblies LH and RH (for sedan) as well as the front wiper arm and blade assemblies. After linking the cable to the negative terminal the technician conducts front wheel alignment inspections followed by adjustments. Drill a hole in the designated area while fixing the shock absorber piston rod in a vise position and extending it fully before discharging gas, ensuring to cover the drill to stop chips from flying. Beginning with two bolt application onto the front lower suspension arm, professional torque can be applied until the steering knuckle receives a new castle nut with installation followed by addition of a new clip if needed. Install the front wheel after stabilizing suspension by bouncing the vehicle and follow it with complete bolt tightening to specified torque levels before performing front wheel alignment checks.