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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Drive Axle - Limited-Slip Differential) >> Repair Instructions >> Differential Clutch Pump Check Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Clutch Pump Check Valve Bolts
    GM630684Courtesy of GENERAL MOTORS CORP.
  1. Drain the differential lubricant. Refer to Lubricant Change in Rear Drive Axle.
  2. Disconnect the clutch pump check valve electrical connector.
  3. Remove the clutch pump check valve mounting bolts (4, 5).
  4. Remove the clutch pump check valve (3) by carefully pulling straight out of the differential carrier.
  5. Remove the O-ring seals (1, 2) from the valve. The O-ring seals may be reused if not cut or damaged.
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