i would say check all your fuses, the alt could have possibly spiked and what you could have heard was relays or fuses popping, its happend to be before on my old camaro, hopefully this helps
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-2006 Chevy Silverado 5.3 Vortec Z71, leveling kit and k&n intake - my daily
-1982 Chevy Camaro Z-28.. Muncie M22 fine spline, Richmond 4:10's, Flowmaster super 40's, 350 4 bolt, lunati cam, fuelie heads, weiand intake, Barry Grant Demon 750cfm double pumper. +6 on jets ..My one true love lol
-1990 bayliner 21ft 5.0 H.O v8 - the floating party
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