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Discussion Starter · #1 ·
like a week ago i noticed my headlights were sort of flickering when i was driving. it's mainly when i accelerate hard i notice this. i thought it was the bumpy roads at first, but when i am stopped behind someone at a light, there is a slight flicker. this only happens when the car is in drive. as soon as i put the car in park, the flickering stops, so i'm basically unable to take a video of it. i'm wondering if anyone else has had this problem and what the fix was. the headlight replacement is like $1400 i heard from a service advisor when i was talking to them that is pretty insane.
 

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Newport, Oregon
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I'd say your alternator or IC regulator is bad.
 

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Discussion Starter · #6 ·
Odd. What year is the car, what engine, and how many miles? How many volts is the alternator putting out?
its a 2014 3.7 and i have about 108K right now. i have no clue how many volts for the alternator, but i just got an oil change and belt replacement like a week ago not even. this started not long after that. they did an inspection and everything was fine although im not too sure how thorough they really check everything lol

I'd say your alternator or IC regulator is bad.
thanks im gonna get it checked out hopefully its nothing too crazy lol im not trying to have to replace the headlight
 

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I agree with @Avedis53, it’s either your alternator or IC regulator. I’m leaning more towards alternator because it only happens under load. If it was the regulator, I’d suspect it would happen at idle too. I would be absolutely shocked if it was your headlight.
 

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If it's the IC regulator, you'll still have to replace the alternator as the IC regulator is an internal, non-replaceable part of the alternator.
 

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Discussion Starter · #9 ·
I agree with @Avedis53, it’s either your alternator or IC regulator. I’m leaning more towards alternator because it only happens under load. If it was the regulator, I’d suspect it would happen at idle too. I would be absolutely shocked if it was your headlight.
If it's the IC regulator, you'll still have to replace the alternator as the IC regulator is an internal, non-replaceable part of the alternator.
i honestly hope its the ic regulator. if i have to replace the headlight i might have a stroke o_O
 

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i honestly hope its the ic regulator. if i have to replace the headlight i might have a stroke o_O
A new alternator runs about $600 at an Infiniti parts store.
 

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I go with alternator also put wouldn't spending maybe $150 at the dealership to get an honest evaluation be better than just loading the parts cannon? That's assuming you have a competent dealer that you trust.
 
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Discussion Starter · #14 ·
I go with alternator also put wouldn't spending maybe $150 at the dealership to get an honest evaluation be better than just loading the parts cannon? That's assuming you have a competent dealer that you trust.
A new alternator runs about $600 at an Infiniti parts store.
it's the headlight apparently. i took it to the dealership they say something broke inside the headlight which is causing it to shake when im driving.
 

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it's the headlight apparently. i took it to the dealership they say something broke inside the headlight which is causing it to shake when im driving.
A flickering headlight to me is one that is varying in intensity or rapidly turning on and off, not vibrating, which would be a mechanical problem. That's why the alternator comments.
 

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2018 Q50 Red Sport 400 AWD
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In to see what the resolution is for the stroke.
 
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