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Flickering Lights

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Old Dec 3, 2006 | 12:51 PM
  #1 (permalink)  
polywave's Avatar
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Default Flickering Lights

Complaint:
DAIMLER CHRYSLER HAVE ISSUED A RECALL TO ALL MERC BRAND CARS FOR A VOLTAGE REGULATOR CHECK AND REPLACEMENT. THE CROSSFIRE HAS THE EXACT SAME SYSTEM AS THE SLK BUT HAS NOT BEEN INCLUDED IN THE RECALL, THERE ARE DOZENS OF CASES WHERE THE LIGHTS DIM AT STOP LIGHTS AND AT IDLE WHERE IT IS CLEARLY DOWN TO THE VOLTAGE NOT BEING REGULATED. DC
HAVE BRUSHED ASIDE MY COMPLAINTS.
 
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Old Dec 3, 2006 | 09:23 PM
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knowit's Avatar
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From: Boston Area
Default Re: Flickering Lights

Mine does that also.
 
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Old Dec 3, 2006 | 09:47 PM
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stryfox's Avatar
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Default Re: Flickering Lights

If the alternator does not put out enough amps at idle no regulator in the world will help.
Does it go away when you bring the rpms up 200 or so?
If it goes away a regulator will not make it stop.
 
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Old Dec 4, 2006 | 01:30 AM
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Aero Blue's Avatar
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From: Macomb Township MI, USA
Unhappy Re: Flickering Lights

My car does this as well and has for sometime now. I thought it was just "one of those things". I mean it doesn't go black, its just a little 'blip", but what can we all do about this as I'm sure there's many of us who experience this.
 
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Old Dec 5, 2006 | 12:22 AM
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polywave's Avatar
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Default Re: Flickering Lights

If anyone wants to, they can add this. I would use a 1n2001 diode, and start with 1uf/25 volt aluminum capacitor. Increasing the capacitor value will reduce the flicker more.

This will affect the dome lamp only. If you want to include the cargo lamp also, just add a diode and capacitor for it too.

Note the bar at one end of the diode, that's the cathode end. The other end is the anode.
The cathode needs to face the dome lamp.

Note the + (positive) mark, and/or - (negative mark) on the capacitor. Be sure to attach the positive end to pin 4 and the [negative end to pin 2 of the dome lamp connector.

Of course, insulate the connections with tape or shrink tubing so they don't short to the chassis.

The diode allows current to flow from the anode end to the cathode end only, not the other way. So when the dome lamp is grounded, current flows through the dome lamp, and also into the capacitor and gets stored there.
When the battery voltage falls off, the current stored in the capacitor can flow only through the dome lamp, keeping it lit, until the battery voltage returns.
When the battery voltage returns, the capacitor is recharged, and ready for the next cycle.
 

Last edited by polywave; Jun 29, 2007 at 09:38 AM.
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Old Dec 8, 2006 | 02:01 AM
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Aero Blue's Avatar
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Thumbs up Re: Flickering Lights

I continue to be amazed at the knowledge people have on our forum.
 
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Old Dec 8, 2006 | 09:38 AM
  #7 (permalink)  
FP's Avatar
FP
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From: Crystal Lake, IL
Default Re: Flickering Lights

I completely agree. There's alot of knowledge here. Really, I think DC dealers should participate in this forum. I think they can gain a great deal of knowledge, and serve their customers better.
 
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Old Jan 19, 2007 | 01:07 PM
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msheredy's Avatar
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From: San Diego, CA
Default Re: Flickering Lights

Originally Posted by polywave
Complaint:
DAIMLER CHRYSLER HAVE ISSUED A RECALL TO ALL MERC BRAND CARS FOR A VOLTAGE REGULATOR CHECK AND REPLACEMENT. THE CROSSFIRE HAS THE EXACT SAME SYSTEM AS THE SLK BUT HAS NOT BEEN INCLUDED IN THE RECALL, THERE ARE DOZENS OF CASES WHERE THE LIGHTS DIM AT STOP LIGHTS AND AT IDLE WHERE IT IS CLEARLY DOWN TO THE VOLTAGE NOT BEING REGULATED. DC
HAVE BRUSHED ASIDE MY COMPLAINTS.
Mine does that as well. Since I drive without the radio on, I like to hear my car(s) I noticed that the lights dim when what sounds like the radiator cooling fan kicks on. I don't think it is anything to worry about. I noticed that there isn't a clutched fan connected to the engine so it solely relies on that electric fan for cooling.
 
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Old Mar 21, 2007 | 07:46 PM
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Vid's Avatar
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From: Birmingham, England
Default Re: Flickering Lights

I noticed this on mine also. I might mention it to Chrysler when it goes in Friday, got to have a catalytic converter replaced!

I won't hold out much luck of them doing anything about it though!
 
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Old Mar 21, 2007 | 10:12 PM
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danimal's Avatar
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From: Yulee, FL
Default Re: Flickering Lights

I have not had it happen a single time since installing the Sun Hyper Voltage GT System.
 
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Old Mar 22, 2007 | 06:57 AM
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bobs's Avatar
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From: Richmond, VA
Default Re: Flickering Lights

Originally Posted by danimal
I have not had it happen a single time since installing the Sun Hyper Voltage GT System.
Danimal, your hypervoltage GT system is essentially a "whole car" version of polywave's mod.
 
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Old Mar 22, 2007 | 07:40 AM
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danimal's Avatar
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From: Yulee, FL
Default Re: Flickering Lights

Originally Posted by bobs
Danimal, your hypervoltage GT system is essentially a "whole car" version of polywave's mod.
Exactly...the interior lights didn't bother near as much as the exterior lights dimming when sitting at idle, or when the A/C compressor kicked in. Life (light) was just being sucked out of the car throughout.

For the all the nay-sayers on advertised claims for the hypervoltage system, that is one problem that it definitely cures. All the other claims, I could care less about...but are a bonus if true.
 
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Old Dec 15, 2007 | 03:43 PM
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black05's Avatar
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From: holloman afb, new mexico
Default Re: Flickering Lights

i also had this problem...until i added water to the battery. the battery took 3 liters to fill.
since then, no flicker
 
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Old Jan 8, 2008 | 06:40 PM
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DrMike's Avatar
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From: Gatineau, Canada
Talking Re: Flickering Lights

The only flickering light problem that worries me is the red and blue light bars a top police cruisers when they pull you over

So far so good, no problems.
 
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Old Jan 10, 2008 | 03:54 PM
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Chris2806126's Avatar
Joined: Jul 2007
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From: New Mexico
Default Re: Flickering Lights

That thing called a Battery, It too acts like a giant capacitor..... If it's getting old, 3 4 or 5 years, it could be the problem. If it's low, just as adding water to it helped to increace it's capacitance. I like to replace the battery every 5 years, especally before a cold snap in the weather. My 2004 coupe has the original battery, so i'm lookn to repace it this year in the fall. Yea my lights flicker also. Guess 'd beter check the water level.
 
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Old Jan 18, 2008 | 06:28 AM
  #16 (permalink)  
sparks81's Avatar
Joined: Jul 2007
Posts: 94
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From: Peoria, AZ.
Default Re: Flickering Lights

I noticed the same problem on my car. After being in the right place at the right time, I found out it was the electric radiator fan. The fan only comes on for a short time right now. The lights flicker briefly when it comes on, but seems to be fine after that.

New battery (2 months old).
 
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