LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2019 >> Encore Base >> Repair and Diagnosis >> Transmission >> Power Transfer Unit/Transfer Case - AAM >> Diagnostic Information and Procedures >> Intermittent Noise

Intermittent Noise

Cause Correction
Inspect for the proper transaxle and gear oil levels prior to performing system diagnosis.
Incorrect gear oil in the transfer case Replace the gear oil. Adhesives, Fluids, Lubricants, and Sealers 
Transfer case bearing.
A chatter or ratcheting type noise during hard acceleration on tight turns.
Confirm noise is coming from the transfer case. Repair as required.