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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - 4T65-E - Symptom Troubleshooting & Diagnosis) >> Abnormal Noise in Park or Neutral Range

Abnormal Noise in Park or Neutral Range

WARNING: This page is about a different variant/trim than selected.
Checks Cause
DEFINITION: Noise only in Park or Neutral
Drive Sprocket Support (522) and Driven Sprocket Support (609)
  • Nicked or scored bearing surfaces
  • The bearing race or roller bearing on the gear support inner bearing are rough or pitted.
  • The bearing outer race support is rough or nicked.
  • A damaged bearing
Forth Clutch Assembly Clutch plates (501) damaged or worn
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