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Home >> Buick >> 2011 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 4T80-E - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Buzz Noise or High Frequency Rattle Sound

Buzz Noise or High Frequency Rattle Sound

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Buzz Noise or High Frequency Rattle Sound

Checks Action
Trace cooler pipes and check for binding or contact at the radiator other than the cooler pipe connectors Verify pressure buzz by watching for a needle vibration on the pressure gauge. Road test may be necessary.
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