Fog light Troubleshooting - Mustang Evolution

Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > Mustang Audio & Video



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 06-29-2009, 09:13 PM   #1
Registered Member
Regular
 
runvsofthisbull's Avatar
 
Join Date: Jul 2006
Region: Florida
Posts: 606
Fog light Troubleshooting

So my foglights haven't been working in a while so yesterday i rewired them. I think I have a bad ground, but not sure. My stock switch lights up like its supposed to so I know the blue wire thats tapped into the white wire by the switch is getting some power, but I haven't tested the other wires, relay, & bulbs themselves. My reasoning behind thinking that the culprit is a bad ground is because I have never known exactly what to ground the two black wires from the bulbs to? I have used a ton of different grounds too! I currently am using one of the green bolts close to the battery for the Driver's side and the hood latch support bolt on the passenger side. My fuse is good and the wiring is only about 1 year old and bought new from velocity mustang performance, however I've always had issues with the foglights working the way they are suppose to....so I'm looking for some help. Thanks.
__________________

2002 True Blue V6 to GT Vert
16.1@86 as an auto 3.8
2.15 60', 9.3@77, 14.4@96 as a 5spd SOHC 4.6
runvsofthisbull is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-29-2009, 10:11 PM   #2
Registered Member
Regular
 
OsirisGuy's Avatar
 
Join Date: Jun 2007
Location: New York
Region: New York
Posts: 1,262
Send a message via AIM to OsirisGuy
Re: Fog light Troubleshooting

I think you're going to have to check all those connections and bulbs.

It's very possible it is a bad ground, do you have a multimeter?

Your ground wire should be attached to bare metal which is also the chassis or connected to the chassis. Just a bolt may not really work, especially when the surface is painted and or the bolt/metal does not conductive.
__________________
Quote:
Originally Posted by MetallicMist View Post
OsirisGuy is correct
Quote:
Originally Posted by stangaroo View Post
OsirisGuy is right
2002 Mustang GT

BBK CAI - Flowmaster Catbacks - Pro 5.0 Shifter
OsirisGuy is offline   Reply With Quote
Old 06-29-2009, 10:22 PM   #3
Registered Member
Regular
 
runvsofthisbull's Avatar
 
Join Date: Jul 2006
Region: Florida
Posts: 606
Re: Fog light Troubleshooting

I have a test light, but no multimeter. Right so what bolt do you use to ground these two wires + the main ground wire that comes off the foglight relay?
__________________

2002 True Blue V6 to GT Vert
16.1@86 as an auto 3.8
2.15 60', 9.3@77, 14.4@96 as a 5spd SOHC 4.6
runvsofthisbull is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-29-2009, 10:41 PM   #4
Registered Member
Regular
 
OsirisGuy's Avatar
 
Join Date: Jun 2007
Location: New York
Region: New York
Posts: 1,262
Send a message via AIM to OsirisGuy
Re: Fog light Troubleshooting

Well I'm not really familiar with the set up you have. If the wires end close together you can ground them all in the same spot, or an existing ground wire by splicing in.

If the surface is painted then you can get some rough grit sandpaper or even a razor blade and expose the bare metal around the hole.

You can still use the test light. Attach the wire to the positive end on the battery and use the probe to poke around for a good ground. A good ground will let the light shine nice and bright.
__________________
Quote:
Originally Posted by MetallicMist View Post
OsirisGuy is correct
Quote:
Originally Posted by stangaroo View Post
OsirisGuy is right
2002 Mustang GT

BBK CAI - Flowmaster Catbacks - Pro 5.0 Shifter
OsirisGuy is offline   Reply With Quote
Old 06-30-2009, 08:50 PM   #5
Registered Member
Regular
 
runvsofthisbull's Avatar
 
Join Date: Jul 2006
Region: Florida
Posts: 606
Re: Fog light Troubleshooting

Ok thanks. I'll do that. I have the same set up that comes on the 99-04 GT's including the correct switch, relay, and wiring, kit.
__________________

2002 True Blue V6 to GT Vert
16.1@86 as an auto 3.8
2.15 60', 9.3@77, 14.4@96 as a 5spd SOHC 4.6
runvsofthisbull is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > Mustang Audio & Video

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fog light help? USMC Gypsy Pre-2005 V6 Mustang 4 10-20-2008 11:53 PM
Fog light help!!! kcfan_2004 General Mustang Discussion 9 05-07-2008 07:48 PM
Fog Light problem. runvsofthisbull Pre-2005 V6 Mustang 12 01-23-2008 07:07 AM
fog light help jahizzi Mustang Audio & Video 8 01-17-2005 07:00 PM
Fog light wiring HOW TO: SpectorV Mustang Audio & Video 0 12-27-2003 04:10 PM

» Like Us On Facebook



01:53 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.