2008 Subaru Outback Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Front Strut: Assembly

  1. Before installing the coil spring, strut mount, etc. on strut, check for the presence of air in the dampening force generating mechanism of the strut since air prevents proper dampening force production.
  2. Checking for presence of air
    1. Place the strut vertically with the piston rod facing up.
    2. Move the piston rod to the center of its entire stroke.
    3. While holding the piston rod end with fingers, move the rod up and down.
    4. If the piston rod moves 10 mm (0.39 in) or more in the former step, purge air from the strut.
  3. Air purging procedure
    1. Place the strut vertically with the piston rod facing up.
    2. Fully extend the piston rod.
    3. With the piston rod fully extended, place the piston rod side down. The strut must stand vertically.
    4. Fully retract the piston rod.
    5. Repeat 3 or 4 times from the step ( 1).
      NOTE: After purging air from the strut, be sure to place the strut with the piston rod facing up. If the strut is laid down for any reason, check for the entry of air in accordance with "Checking for presence of air"
  4. Using a coil spring compressor, compress the coil spring.
    NOTE: Make sure that the vertical install direction of the coil spring is as shown in the figure.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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