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  #1  
Old 09-25-2012, 03:02 AM
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Default Headlamps starting to pulsate.

Hi all, just wondering if anyone has crossed this issue with their vehicle? I was at the drive through at Tim Hortons early in the morning to grab a coffee before work, it was still pretty dark outside, but noticed the headlights only started to pulsate, then would stay at a constant brightness, then pulsate, as if my voltage regulator was starting to go. But only the headlights, not the exterior markers/signal lamps, or the interior instrument lamps on the dash. WTF.
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Old 09-25-2012, 12:13 PM
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Do you have HID's or stock bulbs?
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Old 09-25-2012, 01:35 PM
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The same thing has happened to me.
I currently have HID lights installed (Quad lights), but with my stock bulbs installed, I noticed the driver-side lamp pulsing.
I get the same thing happening with my HID bulbs. Not sure if I should be too concerned as I know that the RAM trucks use a pulse-current to power the headlights.
The only thing I'm worried about is having an HID bulb or ballast go in the middle of winter.
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Old 10-05-2012, 10:28 AM
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Default

Having the same issue. Make sure you have the wire with the relay in place. Running HIDs off the stock wiring (especially if the HIDs are 55w) will toast the stock connectors. The HIDs need their main power through a relayed wire.
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Old 10-09-2012, 04:54 AM
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Could be a bad Rectifier Diode going bad in the Alternator. See if you can track down a charging system tester. Some auto stores have them, and places like batteries plus will let you quickly use it..
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Old 10-19-2012, 01:59 PM
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Quote:
Originally Posted by sonic4x4 View Post
Having the same issue. Make sure you have the wire with the relay in place. Running HIDs off the stock wiring (especially if the HIDs are 55w) will toast the stock connectors. The HIDs need their main power through a relayed wire.
I don't know about that. I've been running my HIDs in my truck almost since the truck was new. I have not had any issues with the stock plugs frying out.
My HIDs are powered directly from the stock wiring harness.. I do not use a relay hooked to the battery. I run the 55w kit.
The kit has been running flawlessly since June 2011.
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Old 10-21-2012, 10:41 AM
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If the lamp is pulsating, and it's only doing in that one place.... that leads me to believe that you've got some sort of loose connection somewhere, be it in the ground wire, one of the bulb connectors, or even in a wiring harness.

These types of problems can be a bitch to chase down, and the crapper of it, is that if left unchecked the loose connection can cause over heating, which will cause bigger and badder problems.

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Old 10-26-2012, 01:43 PM
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Quote:
Originally Posted by Excoastie View Post
If the lamp is pulsating, and it's only doing in that one place.... that leads me to believe that you've got some sort of loose connection somewhere, be it in the ground wire, one of the bulb connectors, or even in a wiring harness.

These types of problems can be a bitch to chase down, and the crapper of it, is that if left unchecked the loose connection can cause over heating, which will cause bigger and badder problems.

Exco
A loose connection would likely cause the bulb to go out - yes - but that would not cause the light to flicker rapidly, like what we are experiencing here.

Dodge uses a pulse system for their headlamps.

Good suggestion, though.
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Old 10-31-2012, 01:47 PM
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Unhappy No response from Chrysler concerning headlight issue, SAFETY ISSUE!

My Headlamp issue is still there, plus now I have a driver's side headlamp works when it feels like it. This is how it all started, I brought it to the dealership close to my work last Monday, they said wow, that is odd, it is more of a flicker than a pulsating, they added more grounds, to see if it helped the issue. Nothing, I went back on Tuesday the next day for my left headlamp was out, they replied oh it's going to cost you so much, fair enough, as soon they started the truck and moved it forward, the left hand bulb came back on. So now I got a vehicle with the left headlamp will work when it wants too, I asked the service writer about the issue, I was ignored for a good hour or so, then when he noticed I was still there waiting for his response he told me arrogantly that the work order is open but no email from the Engineers yet, So I replied, thank you, and left, so I replaced the left hand bulb myself and no difference. I am still waiting on response from somebody from Chrysler, I have emailed DodgeCACares back to see if they heard anything, but I'm just left hanging. No response from anyone from Chrysler, that's pretty bad, I think. I thought they actually care about their customers, but they are very similar to Ford, I had quite a few Fords in the past. Oh well, you pay so much for a new vehicle, and then no help. Pretty sad, I don't know what else to do. I've been posting in Dodge Ram Forums about this issue, everything is all factory, no HID's.
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