GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Holden 🢒 2009 🢒 WM Sedan 🢒 Transmission 🢒 Automatic Transmission - 6L50/6L80/6L90 🢒 Whine/Growl Noise That Changes with Vehicle Speed

Checks

Causes

2-6 and 3-5-R Clutch Hub Thrust Bearing Assembly (65)

Inspect the bearing for wear or damage.

Output Carrier Assembly (68)
    • Inspect the carrier assembly for damaged pinion gears, thrust washers, pins, and rollers.
    • Inspect for a damaged centre support roller bearing assembly (485).
    • Inspect for damaged thrust bearings (486, 488).
    • Inspect for damaged sun gears (487, 489).
    • Inspect the carrier assembly for damaged output carrier rear sun gear thrust bearing (captured).
    • Inspect for damaged or stripped splines on the output carrier assembly.

Output Carrier Thrust Bearing Assembly (69)

Inspect the bearing for wear or damage.

Output Shaft Assembly (70)
    • Inspect for damaged internal gears (495, 497).
    • Inspect the output carrier bushing (498) for damage or wear.

Output Shaft Thrust Bearing Assembly (71)

Inspect the bearing for wear or damage.

Input Sun Gear Thrust Washer (55)

Inspect the washer for wear or damage.

Input Sun Gear Thrust Bearing (54)

Inspect the bearing for wear or damage.

Input Sun Gear (53)

Inspect for spline wear or damage.

Input Carrier Assembly (52)

Inspect the carrier assembly for damaged pinion gears, thrust washers, pins, and rollers.

1-2-3-4 Clutch Hub Thrust Bearing Assembly (63)

Inspect the bearing for wear or damage.

2-6 and 3-5-R Clutch (with Output Carrier Outer Sun Gear Shaft) Hub Assembly (64)

Inspect the output carrier inner sun gear shaft bushings (60 and 62) for damage or wear.

Turbine Shaft Thrust Bearing Assembly (57)

Inspect the bearing for wear or damage.

Fluid Filter Assembly (26)
    • Inspect for damaged or restricted fluid filter assembly (26)
    • Inspect for damaged fluid filter seal assembly (25) or improper sealing interface (leaks, fluid aeration).

Automatic Transmission Fluid Pump Seal (5)

Inspect for worn or damaged seal.