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Home >> Mitsubishi >> 2005 >> Lancer Evolution RS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Basic Brake System -- Except Evolution) >> On-Vehicle Service >> Master Cylinder Function Check
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Master Cylinder Function Check

WARNING: This page is about a different variant/trim than selected.
  1. Remove the reservoir cap and diaphragm.
  2. While watching the open reservoir from a distance of 50 cm (20 inches), have an assistant depress the brake pedal.

    If there was no stream of brake fluid rising from the reservoir, proceed to Step 3.

    If there was no stream of brake fluid rising from the reservoir, repair or replace the master cylinder.

  3. While watching the open reservoir from a distance of 50 cm (20 inches), have the assistant release the brake pedal.

    If there was a small amount of air bubbles rising through the brake fluid, master cylinder function is normal.

    If there were no bubbles rising through the brake fluid, repair or replace the master cylinder.