Whine/Growl Noise That Changes With Vehicle Speed

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Cadillac Escalade ESV, and 2018 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
Output Carrier Assembly (38)	Inspect the carrier assembly for damaged pinion gears, thrust washers, pins, and rollers. Inspect for damaged sun gears. Inspect for damaged or stripped splines on the output carrier assembly.
Reaction Internal Gear Thrust Bearing (75)	Inspect the bearing for wear or damage.
Output Carrier Thrust Bearing Assembly (72)	Inspect the bearing for wear or damage.
Direct Overdrive Sun Gear Thrust Bearing (69)	Inspect the bearing for wear or damage.
Input Sun Gear Thrust Bearing Assembly (64)	Inspect the bearing for wear or damage.
Input Sun Gear Thrust Bearing Assembly (61)	Inspect the bearing for wear or damage.
Reaction Sun Gear Thrust Bearing (57)	Inspect the bearing for wear or damage.
Reaction Carrier Hub Bearing (54)	Inspect the bearing for wear or damage.
Automatic Transmission Fluid Pump Bearing (406)	Inspect the bearing for wear or damage.
Output Carrier Thrust Bearing Assembly (39)	Inspect the bearing for wear or damage.
Output Sun Gear Thrust Bearing Assembly (571)	Inspect the bearing for wear or damage.
Output Shaft Bearing Assembly (40)	Inspect the bearing for wear or damage.
Output Shaft Bearing (46)	Inspect the bearing for wear or damage.
A/Trans Fluid Filter (14)	Inspect for damaged or restricted fluid filter assembly (14) Inspect for damaged fluid filter seal assembly (26) or improper sealing interface (leaks, fluid aeration).
A/Trans Fluid Pump Seal (27)	Inspect for worn or damaged seal.