Check your belt driven engine fan to see if it is rubbing on the shroud. This has been a problem for some who have posted here. The fix has been as simple as securing the bottom of the shroud with a sheet metal screw and as severe as having to have fan and/or shroud replaced.
Other sources of buzzing might be PS pump, A/C compressor, exhaust leak etc.
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2003 34' Dolphin 5342, W22, UP, UPGBrake, F and R Track Bars, Rear IPD sway bar, Koni FSDs, Safe-T-Plus, Scan Gauge II.. 2004 Jeep Liberty, Blue-Ox Adventa..
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