Buzz Noise or High Frequency Rattle Sound
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
| 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. |