Bob-omb Posted August 7, 2011 Share Posted August 7, 2011 Got a strange one for ya, gang. Just replaced the plugs and wires on my '77 and now there's a weird oscillating whistling noise coming from the engine bay, but ONLY when the headlights or A/C are turned on. Alternator? Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted August 7, 2011 Share Posted August 7, 2011 Makes sence. Stick your ear down there. Quote Link to comment Share on other sites More sharing options...
roger.svoboda Posted August 7, 2011 Share Posted August 7, 2011 could be a somewhat loose belt slipping because of the extra load of the lights. Quote Link to comment Share on other sites More sharing options...
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