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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T70 - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Whine/Growl Noise

Whine/Growl Noise

Checks Causes
Front Differential Drive Pinion Gear Assembly (23)
  • Inspect for worn wheel bearings or axles.
  • Inspect for proper Taper Roller Bearing Pre-load
  • Inspect for loose or worn transfer Driven Gear
Differential Assembly (486)
  • Inspect for worn wheel bearings or axles.
  • Inspect for proper Taper Roller Bearing Pre-load
  • Inspect for worn or damaged Side Gear Thrust Washer (492) or Pinion Gear Thrust Washer (488)
  • Inspect for loose or worn Side Gear Axle Splines
Input Carrier Assembly (470)
  • Inspect for worn or damaged Pinion Gear Thrust Washers and Bushings
  • Inspect for worn or damaged Pinion Gears, Pins or Needle Bearings
  • Inspect for loose Hub and Ring Gear
Output Carrier Assembly (474)
  • Inspect for worn or damaged Pinion Gear Thrust Washers and Bushings
  • Inspect for worn or damaged Pinion Gears, Pins or Needle Bearings
  • Inspect for loose Hub and Ring Gear
Reaction Carrier Assembly (467)
  • Inspect for worn or damaged Pinion Gear Thrust Washers and Bushings
  • Inspect for worn or damaged Pinion Gears, Pins or Needle Bearings
  • Inspect for loose hub and Ring Gear
Fluid Pump Assembly (203)
  • Inspect for proper fluid level
  • Inspect for loose or worn Drive Link Assembly (218)
  • Inspect for worn Driven Sprocket Thrust Washer (214) or Drive Sprocket Thrust Washers (219, 220)
  • Inspect for leaking Transfer Drive Gear Support Seal (213), Pump Fluid Outlet Seal Assembly (57) or Filter Seal (202)
  • Inspect for worn or damaged Fluid Pump Shaft Splines
3-5-Reverse Clutch Assembly
  • Inspect for inadequate Clutch Plate Clearance
  • Inspect for loose or worn Clutch Plate Splines (423-425)
  • Inspect for loose or worn Clutch Spring Retainer (427)
  • Inspect for loose Speed Sensor Reluctor Wheel (416) or Retainer (415)
4-5-6 Clutch Assembly
  • Inspect for inadequate Clutch Plate Clearance
  • Inspect for loose or worn Clutch Plate Splines (449, 440)
  • Inspect for loose or worn Clutch Spring Retainer (442)
  • Inspect for loose or worn 3-5-Reverse/4-5-6 Clutch Housing Bushing
1-2-3-4 Clutch Assembly
  • Inspect for inadequate Clutch Plate Clearance
  • Inspect for loose or worn Clutch Plate Splines (456-458)
  • Inspect for loose or worn Clutch Spring Retainer (459)
Low and Reverse Clutch Assembly (OWC) (455)
  • Inspect for loose or worn Splines (455)
  • Inspect for loose or worn Retainer (454)
Low and Reverse Clutch
  • Inspect for inadequate Clutch Plate Clearance
  • Inspect for loose or worn Clutch Plate Splines (449-452)
  • Inspect for loose or worn Clutch Spring Retainer (410)
2-6 Clutch Assembly
  • Inspect for inadequate Clutch Plate Clearance
  • Inspect for loose or worn Clutch Plate Splines (445-447)
  • Inspect for loose or worn Clutch Spring Retainer (407)
Case Assembly (51)
  • Inspect for loose or broken Transmission Mount Bolts
  • Inspect for loose Torque Converter and Differential Housing Bolts (26)
  • Inspect for loose or broken Fluid Trough Bolts (56)