- Buick Ownership
Our 2018 Tourx Preferred (3000 miles) had an intermittent high pitched whistle after warming up. Took it to the dealer and had the service manager spend about 5 minutes under the hood to witness the whistle. It sounded very much like a hot tea kettle. I thought it sounded like a bearing about to seize. Turned out to be the water pump. I assume it was the pump impeller shaft. Pump replaced the next day under warranty and all is quiet again.