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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Automatic Transmission - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions >> Direct Clutch Inspection

Direct Clutch Inspection

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Checking The Sliding Surface Of Disc, Plate & Flange For Damage
    GM1246026Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
  1. Check to see if the sliding surface of the disc, plate, and flange are worn or burnt. If necessary, replace them.
    • If the lining of the disc is peeling off or discolored, or even if a part of the printed number is defaced, replace all discs.
    • Before assembling new discs, soak them in ATF for at least 15 minutes.
    2. Fig 2: Measuring The Free Length Of Direct Clutch Return Spring Using Vernier Calipers
    GM1246027Courtesy of GENERAL MOTORS CORP.
  2. Using vernier calipers, measure the free length of the direct clutch return spring together with the spring sheet.

    Specifications:  Standard free length is 36.04 mm (1.4189 in).

    3. Fig 3: Applying Low-Pressure Compressed Air To Direct Clutch Piston
    GM1246029Courtesy of GENERAL MOTORS CORP.
  3. Check that the check ball is free by shaking the direct clutch piston.
  4. Check that the valve does not leak by applying low-pressure compressed air.
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