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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 252 (Front Drive Axle) >> Diagnostic Information and Procedures >> Noisy in Drive

Noisy in Drive

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Cause Correction
Inspect for the proper gear oil levels prior to performing system diagnosis. Front Axle Lubricant Level Inspection 
Transmission noise Repair or replace as required. Noise and Vibration Analysis
Driveline assembly noise Repair or replace as required. Symptoms - Propeller Shaft
Worn wheel drive shaft constant velocity joints Replace the wheel drive shafts as required. Front Wheel Drive Shaft Replacement - Right Side , Front Wheel Drive Shaft Replacement - Left Side
Bearing noise within the differential assembly A grinding or roar type noise will increase or decrease relative to the vehicle speed.
  1. Inspect for the proper fluid level. Fill as required.
  2. If the noise continues, replace the carrier unit. Front Differential Carrier Assembly Replacement (LGX or LF4) Front Differential Carrier Assembly Replacement (LCV or LTG) 
Gear set whine noise within the differential assembly A whine type noise will increase or decrease relative to the vehicle speed, approximately 80-96 km/h (50-60 mph). Typical causes of a gear set whine type noise may include incorrect backlash and/or pinion depth adjustment or worn or scored gear set teeth.
  1. Inspect for the proper fluid level. Fill as required.
  2. Replace the carrier unit. Front Differential Carrier Assembly Replacement (LGX or LF4) Front Differential Carrier Assembly Replacement (LCV or LTG) 
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