Welcome Guest ( Log In | Register )

 Hyundai-Forums.com > Hyundai Models > Sonata Forum > 1G-3G (1989-2005) Sonata
      
Hyundai-Forums.com - The UNOFFICIAL Hyundai Community This site is NOT affiliated in any way with Hyundai or any of it's subsidiaries. Our goal is to provide Hyundai owners an information outlet - a means to communicate with other Hyundai owners. It is simply a community where fans and owners can get the right information for tuning, customization and general discussions on anything about Hyundai. You'll find the answer to almost any question about your Hyundai in this site. If not, simply join and ask! We have many willing expert members just waiting to answer your questions.
                        
 
 Reply to this topicStart new topic

Do you like Hyundai-Forums.com? Link to us and help spread the word about our forum. Thanks!
> Headlights Go Dim?
tabithah
post May 9 2008, 06:58 AM
Post #1


Newbie


Group: Members
Posts: 6
Joined: 7-May 08
Member No.: 45,060
Status: Offline
Location: usa
Drives: 2001 Hyundai Sonata 2.4L 4 cylinder
When I am driving the headlights will be bright and then all of a sudden go dim and then go bright. What causes them to do this?
Go to the top of the page
 
+Reply
ALLiED
post May 10 2008, 01:02 AM
Post #2


Newbie


Group: Members
Posts: 14
Joined: 22-September 06
Member No.: 22,668
Status: Online
Location: USA
Drives: 2002 hyundai sonata v6 2.7
Something is draining power from your battery and since you didn't give much info, when does it happen? In my 02' I have a 1400watt amp connected and if I turn up volume to high, all the lights in the car can dim in and out because the amp is drawing lots of power.

This post has been edited by ALLiED: May 10 2008, 01:03 AM
Go to the top of the page
 
+Reply
tabithah
post May 12 2008, 07:56 PM
Post #3


Newbie


Group: Members
Posts: 6
Joined: 7-May 08
Member No.: 45,060
Status: Offline
Location: usa
Drives: 2001 Hyundai Sonata 2.4L 4 cylinder
I don't have a sound system to draw power from my battery, so that is not it. It use to do it when I was driving but I have not seen it do it lately. But I still wonder what was making them do that?
Go to the top of the page
 
+Reply
tabithah
post May 19 2008, 03:11 AM
Post #4


Newbie


Group: Members
Posts: 6
Joined: 7-May 08
Member No.: 45,060
Status: Offline
Location: usa
Drives: 2001 Hyundai Sonata 2.4L 4 cylinder
OK. I know when they go dim now. The headlight sand the dash lights go dim when I turn the heat or air on!
Go to the top of the page
 
+Reply
madderhatter
post May 21 2008, 07:07 PM
Post #5


Hyundai-Forums
Group Icon

Group: Administrator
Posts: 3,049
Joined: 2-April 05
From: Tallahassee, Florida
Member No.: 6,422
Status: Offline
Location: Tallahassee, Florida - USA !
Drives: 2006 Sonata LX (Gracie), 2002 C240 (Gretta)
Give your battery terminals and connectors a good cleaning - there's a good chance that will stop it if there's nothing wrong with your alternator. You can go by any AutoZone or similar place and they will check your charging system for free.
Go to the top of the page
 
+Reply
SongDog
post May 28 2008, 12:15 PM
Post #6


Member
*

Group: Members
Posts: 31
Joined: 19-April 07
Member No.: 29,832
Status: Offline
Location: Canada
Drives: 2001 Hyundai Santa Fe GLS 2.7
The early Sonatas and Santa Fes had pretty marginal capacity from their integral Bosch alternator/regulator units. My 2001 SF GLS 2.7 had the regulator die, so the whole thing had to be replaced (ka-ching!) I got it upgraded to the later spec model. The thing is that if it can't regulate the voltage well at max load, your battery gets huge surge currents, which it doesn't like. Get both the regulator and battery properly checked out (not just a quick static voltage check).
Go to the top of the page
 
+Reply
srq screw
post Jun 24 2008, 11:51 AM
Post #7


Newbie


Group: Members
Posts: 16
Joined: 18-February 08
Member No.: 41,363
Status: Offline
Location: sarasota, fl
Drives: 01 sonata 2.4
QUOTE(madderhatter @ May 21 2008, 08:07 PM)
Give your battery terminals and connectors a good cleaning - there's a good chance that will stop it if there's nothing wrong with your alternator.  You can go by any AutoZone or similar place and they will check your charging system for free.
[right][snapback]162936[/snapback][/right]



madderhatter always has great advice...

also try sears, many walmarts also do charging system checks, too...
Go to the top of the page
 
+Reply
 
  Advanced Search
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:


Reply to this topicStart new topic
Get your Hyundai listed in the Garage Today, for FREE, to share with the world what you drive and what toys and modifications you have.

Collapse

> Similar Topics

  Topic Replies Topic Starter Views Last Action
No New Posts Google + Hyundai-forums.com
Not showing up!!
 1 hideftv 11 25th November 2008 - 02:24 PM
Last post by: v33sonata
No New Posts Topic has attachmentsHeadlights Near Complete, What Do You Think?
 11 liquid_02 164 22nd November 2008 - 10:04 PM
Last post by: Projekt_Accent
No New Posts Goodyear Comfortred - What Size Should I Get?
225/55R17 or 215/55R17
 6 tiberious 133 21st November 2008 - 12:08 PM
Last post by: dogstar
No new Got My Gls's Deck Installed - Alpine 9886 - Video
 27 Glock23 260 12th November 2008 - 06:42 PM
Last post by: Evan
No New Posts Goodbye Everyone From Valkyrie Yb70!
Farewell from an ex-Hyundai Scoupe Turbo Owner
 5 VALKYRIE YB70 67 12th November 2008 - 08:57 AM
Last post by: aj7

 
2nd December 2008 - 02:43 AM
Hyundai-Forums.com is not affiliated with or endorsed by Hyundai Motor Company.
Powered By IP.Board 2.3.6 © 2008  IPS, Inc.