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Old 03-16-2017, 12:30 AM   #5
RED72blazer
urban fourwheelin
 
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Join Date: Aug 2002
Location: Seattle
Posts: 1,007
Re: buzzing external voltage regulator 72 K5 blazer

No radio installed currently. It's definitely the regulator. You can feel it if you put your hand on it.
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1972 K5 Blazer with Cummins 4BT, NV4500 swap in the parts gathering stage.
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