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1974 charger headlight problem #1693789
11/03/14 03:48 AM
11/03/14 03:48 AM
Joined: Jan 2012
Posts: 261
Albuquerque, new mexico
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moparvinson Offline OP
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moparvinson  Offline OP
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Albuquerque, new mexico
my son took out his charger for its first run, after about 10 min . the headlights turn off? all other lights stay on and are working normal. if you turn them off for a few minutes and turn them back on they work for a few min. then shut off again. I did a search for headlight relay but all that comes up is the headlight switch which is new (from autozone).is the relay in the switch or somewhere else? Thanks for any help.

Re: 1974 charger headlight problem [Re: moparvinson] #1693790
11/03/14 04:17 AM
11/03/14 04:17 AM
Joined: Jan 2003
Posts: 17,516
Las Vegas, NV
6bblgt Offline
I Live Here
6bblgt  Offline
I Live Here

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Posts: 17,516
Las Vegas, NV
There are NO fuses or relays on headlight circuits, bad connection and/or bad switch.

Re: 1974 charger headlight problem [Re: 6bblgt] #1693791
11/03/14 12:48 PM
11/03/14 12:48 PM
Joined: Oct 2014
Posts: 113
PA
Sir Valiant Offline
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Sir Valiant  Offline
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PA
Yup and I would also consider a headlight relay kit to take the load off.

http://www.ebay.com/itm/Dapper-Lighting-...f78&vxp=mtr

Re: 1974 charger headlight problem [Re: moparvinson] #1693792
11/03/14 02:58 PM
11/03/14 02:58 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Classic symptoms of a bad HL switch (even tho its new) Murphys Law. Unfortunately no return (usually) with electrical parts. I'd purchase another one & likely you will be fine.


live every 24 hour block of time like it's your last day on earth
Re: 1974 charger headlight problem [Re: moparvinson] #1693793
11/03/14 06:59 PM
11/03/14 06:59 PM
Joined: Feb 2005
Posts: 174
Creedmoor, NC, USA
74Charger Offline
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74Charger  Offline
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Posts: 174
Creedmoor, NC, USA
Check the headlamp harness ground wire. It bonds to ground close to negative battery terminal, and on the battery side of the radiator support. I have seen these cause lots of headaches, and often get broken due to multiple battery replacements over the years. Good luck!

Re: 1974 charger headlight problem [Re: 74Charger] #1693794
11/03/14 08:55 PM
11/03/14 08:55 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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Supercuda  Offline
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Posts: 14,889
up yours
The headlights have a self resetting circuit breaker. That is what's causing the lights to go off, then after a while work.

Now the question is what is tripping the breaker.

I'd check for loose and dirty connections.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 1974 charger headlight problem [Re: Supercuda] #1693795
11/04/14 12:11 AM
11/04/14 12:11 AM
Joined: Sep 2003
Posts: 19,383
north of coder
moparx Online content
"Butt Crack Bob"
moparx  Online Content
"Butt Crack Bob"

Joined: Sep 2003
Posts: 19,383
north of coder
the dimmer switch also can cause this symptom.check the connections for proper contact/corrosion.

Re: 1974 charger headlight problem [Re: moparx] #1693796
11/04/14 12:55 PM
11/04/14 12:55 PM
Joined: Jan 2003
Posts: 21,067
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Joined: Jan 2003
Posts: 21,067
Niles , Ohio
I agree check the dimmer.My Dart did the same thing.The dimmer was bad.Rocky


Chrysler Firepower
Re: 1974 charger headlight problem [Re: therocks] #1693797
11/05/14 07:44 PM
11/05/14 07:44 PM
Joined: Jan 2012
Posts: 261
Albuquerque, new mexico
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moparvinson Offline OP
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moparvinson  Offline OP
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Joined: Jan 2012
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Albuquerque, new mexico
I bought a new american made headlight switch and a new dimmer switch. not sure which one it was but lights are working great now. Thanks for all of the help

Re: 1974 charger headlight problem [Re: moparvinson] #1693798
11/05/14 09:56 PM
11/05/14 09:56 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
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Joined: Jan 2003
Posts: 27,421
Balt. Md
Glad to hear you got it. I would see the headlite switch cause that problem most of the time as some times the contacts in the circuit breaker in the switch get corroded and it cause some heat in the switch which can trip the breaker in the switch. Ron

Last edited by 383man; 11/05/14 09:57 PM.






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