Honda-Tech - Honda Forum Discussion

Notices
Honda Civic (2001 - 2005) Coupe / Sedan / Hybrid (Includes Acura EL)

Lights DIM.. When radiator fan comes on...

Thread Tools
 
Search this Thread
 
Old 12-11-2008, 08:49 PM
  #1  
Junior Member
Thread Starter
 
djdownfawl's Avatar
 
Join Date: Feb 2008
Location: NJ, USA
Posts: 78
Likes: 0
Received 0 Likes on 0 Posts
Default Lights DIM.. When radiator fan comes on...
The lights dim when the radiator fan comes on what could be wrong?
djdownfawl is offline  
Reply Like
Old 12-13-2008, 07:41 PM
  #2  
Junior Member
Thread Starter
 
djdownfawl's Avatar
 
Join Date: Feb 2008
Location: NJ, USA
Posts: 78
Likes: 0
Received 0 Likes on 0 Posts
Default
bump
djdownfawl is offline  
Reply Like
Old 12-13-2008, 08:37 PM
  #3  
Honda-Tech Member
 
unevolved's Avatar
 
Join Date: Oct 2008
Location: College Station, TX
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts
Default
Do you have anything else wired up to the battery? Stereo, HIDs, etc.
unevolved is offline  
Reply Like
Old 12-14-2008, 09:48 AM
  #4  
Honda-Tech Member
iTrader: (1)
 
skipbarber's Avatar
 
Join Date: Oct 2005
Location: Rockville, MD, USA
Posts: 540
Likes: 0
Received 1 Like on 1 Post
Default
have the charging system checks, could be an early sign of a weakening alternator.
skipbarber is offline  
Reply Like
Old 12-15-2008, 10:34 PM
  #5  
Junior Member
Thread Starter
 
djdownfawl's Avatar
 
Join Date: Feb 2008
Location: NJ, USA
Posts: 78
Likes: 0
Received 0 Likes on 0 Posts
Default
there is nothing wired up, well stock stereo and a radar detector.
no hids no subs no amps nothing!
charging system was checked and was good.
djdownfawl is offline  
Reply Like
Old 12-15-2008, 10:51 PM
  #6  
Honda-Tech Member
 
Hater's Avatar
 
Join Date: Jan 2003
Location: Providence
Posts: 2,742
Likes: 0
Received 0 Likes on 0 Posts
Default
How dim do they get? Every 4cyl Honda I've had has always done this a little bit...
Hater is offline  
Reply Like
Old 12-15-2008, 11:19 PM
  #7  
Plead da Fif
 
It Wasn't Me's Avatar
 
Join Date: Sep 2007
Posts: 7,452
Likes: 0
Received 11 Likes on 10 Posts
Default
Mine will slightly dim if I turn on the rear window defrost, the AC kicks on, or my stereo is up too loud. It only does it when idling, though. A high output alternator is in the works.
It Wasn't Me is offline  
Reply Like

Trending Topics

Old 12-16-2008, 07:33 PM
  #8  
Honda-Tech Member
 
DynastyRacer22's Avatar
 
Join Date: Mar 2004
Location: Rainy, WA, United State
Posts: 1,253
Likes: 0
Received 0 Likes on 0 Posts
Default
mine does the same thing even on my old integra but yea what "it wasnt me" said upgrading to a high output alternator might help actually
DynastyRacer22 is offline  
Reply Like
Old 12-18-2008, 08:07 AM
  #9  
Honda-Tech Member
 
ken9's Avatar
 
Join Date: Nov 2008
Location: Ontario, Kanada
Posts: 1,800
Likes: 0
Received 1 Like on 1 Post
Default
My light dim while i turn on my radiator too. I check the connection and wiring and see like it running fine on 12 volt and 14 volt. Charging system seem to be working well.
ken9 is offline  
Reply Like
Old 12-18-2008, 08:13 AM
  #10  
Honda-Tech Member
 
Marauder's Avatar
 
Join Date: May 2002
Location: SoCal, CA, USA
Posts: 5,187
Likes: 0
Received 2 Likes on 2 Posts
Default
some vehicles its normal, but it gets worse when the alternator isn't putting out as many amps anymore.
Marauder is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Battery warning light only comes on when radiator fan does
zervos
Honda Civic (2001 - 2005)
1
10-31-2016 07:02 AM
Radiator fan caused dead battery?
Berick920
Honda CRX / EF Civic (1988 - 1991)
4
11-18-2012 06:27 AM
Low battery voltage under load
nychonda
Tech / Misc
8
08-20-2012 12:08 AM
RADIATOR FAN TURNS ON RANDOMLY AND KILLS BATTERY- NEED HELP!!
dominic11
Honda Accord (1990 - 2002)
7
07-30-2008 01:50 PM
alternator replacement
tsouyporta
Honda Accord (1990 - 2002)
5
09-17-2006 07:02 AM
Tags
Back to Subforum
Honda Civic (2001 - 2005)
View Next Unread
Does the Antenna have a Relay?




Advanced Search
Quick Reply: Lights DIM.. When radiator fan comes on...


Reply Closed Thread Share

All times are GMT -8. The time now is 07:48 PM.