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exhaust noise 7.3
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  1. 94-98 7.3L Problem Forum
    My truck is a 97 f350 regular cab, with a straight pipe before the wheel. On cold mornings my exhaust makes a high pitched deafingly loud noise. When I hit the throttle, it happens for maybe a couple seconds but it appends often sometimes up to a half hour. What is noise? Thanks, Wade
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