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2008 F-450 whistle and rumble
I have a new F-450 Super Duty with 14,000 miles on it. I was pulling my 30 foot gooseneck with a good load. I stopped for dinner and shut down the truck after about a 2 minute idle. When I started back up...I now have a high pitch whistle (kind of a squeal) only at certain times when accelerating or decelerating. I also have a slight rumble when accelerating now. Any help would be greatly appreciated. Didn't sleep all night thinking I blew my turbo. Thanks in advance.
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