Impreza GT F4-2.5L Turbo (2009)
CAUTION:
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Because the seal of the ABSCM cannot be replaced, do not pull or peel it by lifting it up.
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Because the screw of the H/U will become slightly worn in every replacement procedure, 5 times is the maximum number of times for
replacement. If a problem is found such as not being able to torque the screw to specifications even before 5 replacement operations are
performed, replace the H/U body.
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When installing the ABSCM, always use new screws.
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When the sealing surface of the ABSCM or H/U is dirty or damaged and it cannot be removed or repaired, replace with a new part.
1) Remove the ABSCM&H/U.
2) To prevent entry of foreign objects and brake fluid leakage, plug the oil pressure port of the ABSCM&H/U using a screw plug, etc.
3) Set the pump motor section of the removed ABSCM&H/U face down on a vise.
NOTE:
Before securing a part in a vise, place cushioning material such as wood blocks, aluminum plate or cloth between the part and the vise.
4) Using TORX(R) bit E5, remove the four screws of ABSCM.
NOTE:
These screws cannot be reused.
5) Slowly pull out the ABSCM upward from the H/U.
NOTE:
To prevent damaging of coil section, remove the ABSCM straight up from H/U without twisting.
6) Make sure there is no dirt or damage on the sealing surface of the H/U.
CAUTION:
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Do not clean the ABSCM&H/U by applying compressed air.
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Even if damage is found on the H/U seal, do not attempt repair by filing or with a metal scraper. To remove the seal residue, always use a
plastic scraper. Do not use chemical such as paint thinner, etc., to clean.
7) Position the coil of the new ABSCM to align with the H/U valve.
8) To prevent deformation of the ABSCM housing cover, hold the corner of ABSCM and install it to the H/U without tilting.
9) Using a TORX bit E5, attach/tighten new screws in the order of (1) through (4).
CAUTION:
Always use new screws.