Okay, so the lights were flickering and you swapped alternators and still have a flicker.
Which lights? Headlights? Tail lights? Dash lights? All the above?
Is there a pattern to the flicker? Like hit a bump and it gets worse? Or turn on the headlights and it's worse? Turn signals?
Do the lights flicker if you turn them on with the engine off?
Do they get brighter if you start the engine with them on?
Any change if you wiggle the dimmer switch or the light switch?
I suspect you have a bad connection either at the headlight switch or the power feed side. The answers to the above should help narrow that down.
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Tuesday, August 29th, 2017 AT 10:34 PM