Welcome to the North American Subaru Impreza Owners Club Friday July 11, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Electrical & Lighting

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-09-2010, 02:30 PM   #1
BlackonBlueSubaru
Scooby Newbie
 
Member#: 222448
Join Date: Sep 2009
Location: Indiana
Vehicle:
04 WRX
WRB

Default Question on Voltage drop...

I have a turbo timer on my 04 wrx, and i use it mostly to view battery voltage. However when the radiator fan kicks on or i have the heater/AC fan on i can watch the voltage drop to 11 volts sometimes as low as 10... when the fans arent running the voltage indicator will rest at 13.9/14.0 volts. When it does dip i can view my dash lights and headlights dim significantly... Whats up with that? poor grounding? Is there a fix, like beefing up the grounds under the hood? anyone else see this happen? Any info is appreciated.
* Registered users of the site do not see these ads.
BlackonBlueSubaru is offline   Reply With Quote
Old 08-09-2010, 03:25 PM   #2
rkramer
Scooby Guru
 
Member#: 118209
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: North Dakota
Vehicle:
2002 WRX Sedan

Default

normal, yes for a subaru. fix the grounds and doublecheck your battery terminals.
rkramer is offline   Reply With Quote
Old 08-11-2010, 09:44 AM   #3
vien
Scooby Specialist
 
Member#: 221538
Join Date: Aug 2009
Location: whorlando
Vehicle:
2003 wrx/ylw wheels
darkness.................

Default

get a voltage stabilizer kit it really works for our subarus
vien is offline   Reply With Quote
Old 08-11-2010, 07:17 PM   #4
motorhead1359
Scooby Newbie
 
Member#: 206671
Join Date: Mar 2009
Chapter/Region: NESIC
Location: Charlton MA
Vehicle:
1998 Teh Unicorn
Green

Default

make a grounding kit
motorhead1359 is offline   Reply With Quote
Old 08-12-2010, 10:12 AM   #5
rkramer
Scooby Guru
 
Member#: 118209
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: North Dakota
Vehicle:
2002 WRX Sedan

Default

Quote:
Originally Posted by vien View Post
get a voltage stabilizer kit it really works for our subarus

snakeoil.... worthless and not needed.


subaru's have crappy grounds. Fix that.
rkramer is offline   Reply With Quote
Old 08-12-2010, 10:52 AM   #6
van_dutch
Scooby Specialist
 
Member#: 198633
Join Date: Dec 2008
Chapter/Region: NESIC
Location: MA
Vehicle:
2004 WRX
Black

Default

The drop to 10 seems a little low.... Some drop is expected. Cleaning the grounds is never a bad idea.

Last edited by van_dutch; 08-12-2010 at 10:54 AM. Reason: clarity
van_dutch is offline   Reply With Quote
Old 08-12-2010, 02:45 PM   #7
BlackonBlueSubaru
Scooby Newbie
 
Member#: 222448
Join Date: Sep 2009
Location: Indiana
Vehicle:
04 WRX
WRB

Default

I just did the mod in my shop 30 min? I ran 8 Ga. from battery - terminal to chassis drivers side ground to passenger side ground and to both sides of top intake and to alternator bolt... I do idle smoother, and my voltage drop isnt quite as much as previously stated now the lowest drop is 12.2 volts from as low as 10 before mod. Cool thanks fellow Subies...
BlackonBlueSubaru is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Voltage drop s_nold Car Audio, Video & Security 14 07-06-2004 09:21 AM
Voltage drop OK? lupohki Car Audio, Video & Security 2 05-14-2004 02:41 AM
voltage drops and theory in general? (lets compare #s) wayoutwest Factory 2.0L Turbo Powertrain 6 08-12-2002 08:33 PM
voltage drop in stock system forque Car Audio, Video & Security 3 07-19-2002 10:56 PM
Question on voltage settings for A'PEXi Auto Timer Sparks Factory 2.0L Turbo Powertrain 5 04-16-2002 09:31 AM


All times are GMT -4. The time now is 01:51 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.