Great Lakes 4x4. The largest offroad forum in the Midwest - View Single Post - 97 7.3 powerstroke whistles/hiss at a constant speed
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Old January 25th, 2013, 06:40 PM   #23
tom77cj5
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Sounds like the ebv. Its doing what its supposed to. Drive it around for about 10-15 min. It should go away. Its there to warm the motor faster
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