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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Service, Diagnosis & Troubleshooting) >> Buzz Noise or High Frequency Rattle Sound

Buzz Noise or High Frequency Rattle Sound

WARNING: This page is about a different variant/trim than selected.
Buzz Noise or High Frequency Rattle Sound

Checks Action
DEFINITION: A buzz or high frequency rattle
  • Trace Cooler Pipes
  • Check for binding or contact at the Radiator, other than at the Cooler Pipe connectors
 Verify a pressure buzz by watching for a needle vibration of the pressure gage. A road test may be necessary. Refer to Road Test Procedure (M30/M32/M70)  or Road Test Procedure (M33 Only) .
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