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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Automatic Transaxle - 4T65-E - Overhaul) >> Repair Instructions >> Fourth and Second Clutch Functional Air Check >> Checking Procedure

Checking Procedure

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    Fig 1: Identifying Second Clutch Housing Thrust Washer
    GM49254Courtesy of GENERAL MOTORS CORP.
  1. For the purposes of this test, attach the driven sprocket support assembly (609) and the second clutch housing thrust washer (611) onto the second clutch housing assembly (617).
    2. Fig 2: Blowing Air Into Feed Holes
    GM49255Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not exceed the recommended amount of air pressure or it may damage or cause seals to roll.
  2. Apply 138 kPa (20 psi) to the feed holes marked 2 and 4 and listen for the second and fourth clutches to apply.
  3. Hold the pressure for five seconds. If the clutches do not apply and hold, then disassemble the driven sprocket support components. Inspect all of the seals and clutches for proper assembly. When finished, repeat the functional check.
    4. Fig 3: Identifying Second Clutch Housing Thrust Washer
    GM49254Courtesy of GENERAL MOTORS CORP.
  4. When the clutches apply and hold correctly, remove the driven sprocket support assembly (609) and the second clutch housing thrust washer (611) from the second clutch housing assembly (617).
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