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Old 08-11-2014, 03:48 PM   #1
Stubaru91
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Join Date: Dec 2011
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Location: Jeannette, PA
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2014 WRX
World Rally Blue

Default Headlight flickering issue

Need some help/guidance. Recently I had an HID kit installed in my car. 2 weeks in I blow 3 bulbs and disconnected the kit. So I put oem bulbs in and everything is peachy. I put silverstars about a week later and now I have this random quick flicker that happens while driving at night. ONLY with the AC on. It's a very fast flicker also. Just once, at random and then it goes away for a few minutes. I put the oem bulbs back in and they are flickering now too. Getting battery and alternator checked ASAP, even though my car is a brand new 2014. Anyone have experience or a similar issue with this?


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Old 08-11-2014, 10:29 PM   #2
Cougar4
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Default

To see if the alternator is causing the trouble you can disable it for a test. Remove the plug on the back side of it and see if the trouble goes away. If it does then the alternator has excessive AC ripple voltage. If that doesn't help then check the power and ground connections to the lights. Make sure the ballasts are getting proper voltage.
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Old 08-15-2014, 06:55 AM   #3
Stubaru91
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Default Headlight flickering issue

I no longer have HID's. In the car. Also, the lights ONLY flicker while driving and with the AC on. I must be driving. Also, from what I could tell, running the ac with the windshield wipers did not create any flicker at all. Also, according to the tests at advance auto, battery, alternator, and start up systems are all normal.


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Old 08-15-2014, 09:13 AM   #4
CRAZYHAWK
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Default

Do the high beams flicker?

Does it occur on left and right sides?
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Old 08-15-2014, 03:27 PM   #5
Stubaru91
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Yes. The flicker as a whole if the highs are on. Both sides from what I can tell.


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Old 08-15-2014, 07:16 PM   #6
dangerousatom
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Pull the grounds on either side of the front frame rails and torque them back down. ( look on the frame rails about 4-6" from the radiator you will see a black ground wire to a 10mm bolt ) Also if you have the means run a quick bit of lamp wire or something 16-18g to each of the grounding points right from the neg battery post. If that solves the issue make or buy a grounding kit and be sure to drop leads to those points, .... as a normal kit will not include them.
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Old 08-15-2014, 08:29 PM   #7
Stubaru91
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Quote:
Originally Posted by dangerousatom View Post
Pull the grounds on either side of the front frame rails and torque them back down. ( look on the frame rails about 4-6" from the radiator you will see a black ground wire to a 10mm bolt ) Also if you have the means run a quick bit of lamp wire or something 16-18g to each of the grounding points right from the neg battery post. If that solves the issue make or buy a grounding kit and be sure to drop leads to those points, .... as a normal kit will not include them.

Am I able to get to them without taking my bumper off?


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Old 08-15-2014, 08:53 PM   #8
dangerousatom
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Quote:
Originally Posted by Stubaru91 View Post
Am I able to get to them without taking my bumper off?
Yes easily.....they are on the engine bay side.
-Dr side is below the battery on frame rail near radiator/cam cover
-Pass side is same spot just on the other side
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Old 08-15-2014, 09:43 PM   #9
Stubaru91
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Quote:
Originally Posted by dangerousatom View Post
Yes easily.....they are on the engine bay side.

-Dr side is below the battery on frame rail near radiator/cam cover

-Pass side is same spot just on the other side

Thanks a bunch man. I'll check these out in a bit!


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