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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 >> 1-2 Support Roller Clutch Functional Check >> Checking Procedure

Checking Procedure

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    Fig 1: Identifying 1-2 Support Drum Assembly
    GM10615Courtesy of GENERAL MOTORS CORP.
  1. Position the 1-2 support drum assembly (687) on the bench as shown.
  2. Install the reaction sun gear assembly (678) into the 1-2 support drum (687).
  3. Rotate the components as indicated by the arrows:
    • The roller clutch should move freely in the indicated directions
    • The roller clutch should lock in the direction opposite of that indicated
  4. If the roller clutch does not function as described, reassemble the clutch correctly or replace the assembly.
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