HID headlight problem - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Engine Tunes/Mods

Engine Tunes/Mods Performance Engine Tuning/Engine Modifications

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  #1  
Old 05-18-2011, 04:48 PM
ayotte ayotte is offline
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2007 Chevy TrailBlazer LT
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HID headlight problem

Hi guys. I have something weird going on with my after market HID headlamps. I recently ran the battery dead and had to boost it. I got a pretty good arc when i attached the negative to my engine block. Since then my low beam bulb will only work the first time I start the trailblazer each day. Every consecutive time that I start it the low beam on the passenger side will not work. It will not work with the interior switch or when I put it in gear. I have replaced the bulb and swapped the ballast from the working headlights and still no go. The fuses all check out good and I also replaced them. I also disconnected the negative cable on the battery for ten minutes to see if it helped but no dice.

Any help you could provide would be awesome. Its a 2007 LT with the 4.2 I6

Thanks
Ayotte
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  #2  
Old 05-18-2011, 07:42 PM
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ej_bennallie ej_bennallie is offline
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Do you have a wire harness attached to your ballast? If not you should get one. This would send power over to your Passenger side.
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Old 05-18-2011, 07:42 PM
TollKeeper TollKeeper is offline
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Do you use the relay system for your headlights, or are they direct wired into the OE wiring?

If you have a relay, I would probly suggest checking the wiring, and the relay, and the ground for the relay.

If you dont have a relay, I would suggest you get one.
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Old 05-18-2011, 07:44 PM
Boricua SS Boricua SS is offline
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.. if you hve the relay harness, thn trouble shoot that..if not, check your factory wiring harness to see if it burnt up
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Old 05-18-2011, 07:47 PM
ayotte ayotte is offline
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The headlights are just wired into the the OEM wiring and i cant see anything wrong at all with that or the ballast.
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Old 05-18-2011, 07:49 PM
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ej_bennallie ej_bennallie is offline
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Quote:
Originally Posted by ayotte View Post
The headlights are just wired into the the OEM wiring and i cant see anything wrong at all with that or the ballast.
id just grab a relay, but if u wanna find the problem, you have some research to do.
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Old 05-18-2011, 09:20 PM
ayotte ayotte is offline
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Ok thanks guys I will see what I can figure out

Ayotte
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  #8  
Old 05-19-2011, 01:22 PM
efi-diy efi-diy is offline
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HID head light problem == engine tune /mod ????

must be some new fangled ignition - HID otherwise why is it posted in the engine tune/mod section????????????
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  #9  
Old 05-22-2011, 05:17 PM
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Dudirt Dudirt is offline
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hid problem

I had a similar problem with mine also when i first got them the would blink & flicker what i did was add a relay harness & also up grade my ballast to digital ballast from a analog one
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Old 05-22-2011, 09:47 PM
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smokintrailblaz smokintrailblaz is offline
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Do you actually need a DRL modifier/killer? Would a harness and HID kit be enough. I dont mind turning the switch all the way to the left everytime. The DRL thing seems way over my head.
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