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During these really cold days in Wisconsin I can often hear whistling noise coming from the engine.
Is this something to worry about? Truck is still under warranty; should I take it to get it checked? My truck is 2005 F-150 w/ 4.6, 6,700 miles on odometer.
If you have warranty left, have the dealer check it out. I had my dealer service call the dealer mentioned in the thread I linked. They isolated the noise to my alt. and changed it under warranty.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.