• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Very odd electrical problem. Help if you can.

  • Thread starter Thread starter BackDraft 5.0
  • Start date Start date Feb 26, 2007
B

BackDraft 5.0

New Member
Nov 6, 2004
11
0
0
Feb 26, 2007
#1
  • Feb 26, 2007
  • #1
When I turn on my foglights and headlights, my left turn blinker no longer works. My right one does though. The left blinker light will be on, but it does not blink. When the headlights and foglights are on, the left foglight dims, and if I turn the left blinker on, the right fog light blinks. This happens very sporadically as well -- it seems to happen only on cold days, but I am not too sure. If I turn my foglights off with just my headlights on, everything works fine.

And, for what this is worth, I have luminics ultra white headlight and foglight bulbs.

Any thoughts on the subject?

My theory is that some wires are touching somewhere, but where? I think this because, obviously, there is not a short in the wireing because ALL of the lights are on. I think that a current is being transfered somewhere along the wireing because of the dimming of the left foglight. I am just not sure where to start. I would like to try and avoid getting all new wireing harnesses because that will not be economical.
 
F

fordtech28

Member
May 12, 2006
312
0
17
Riverside Cali.
Feb 26, 2007
#2
  • Feb 26, 2007
  • #2
check your front and rear left lights when it stays on it means one of the lights is burned out
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Feb 26, 2007
#3
  • Feb 26, 2007
  • #3
What happens with the turn signal lights when you turn the hazards on? Did you do any sort of fog light rewire?

If you have a blinker causing a fog light to flash, there's a horrible crosswire in the system. I would also go over all grounds for the lighting circuit.

Good luck.
 
B

BackDraft 5.0

New Member
Nov 6, 2004
11
0
0
Feb 26, 2007
#4
  • Feb 26, 2007
  • #4
HISSIN50 said:
What happens with the turn signal lights when you turn the hazards on? Did you do any sort of fog light rewire?

If you have a blinker causing a fog light to flash, there's a horrible crosswire in the system. I would also go over all grounds for the lighting circuit.

Good luck.
Click to expand...

I have never done any kind of rewire. It just all of the sudden happened one day. When the hazzards are on, both blinkers come on.
 

Blackened302

Active Member
Jul 21, 2005
1,439
0
36
South TX
Feb 27, 2007
#5
  • Feb 27, 2007
  • #5
had this problem in my old jeep--there was, in fact, a crosswire.
 

m0l0

Member
Nov 20, 2005
178
0
17
Feb 27, 2007
#6
  • Feb 27, 2007
  • #6
I had exactly the same problem on the driver side about 3 weeks ago, i was really pissed since most times electrical problems are dificult to locate, u know what fixed it , i just disconnected the driver side and reconected them and the problem went away in that moment, call it good luck or just a bad contact from the harness but u could give a try
 
B

BackDraft 5.0

New Member
Nov 6, 2004
11
0
0
Feb 27, 2007
#7
  • Feb 27, 2007
  • #7
m0l0 said:
I had exactly the same problem on the driver side about 3 weeks ago, i was really pissed since most times electrical problems are dificult to locate, u know what fixed it , i just disconnected the driver side and reconected them and the problem went away in that moment, call it good luck or just a bad contact from the harness but u could give a try
Click to expand...

You just disconnected the bulbs from the harness or the fog lights and headlight harnesses from the main harness?
 

m0l0

Member
Nov 20, 2005
178
0
17
Feb 27, 2007
#8
  • Feb 27, 2007
  • #8
BackDraft 5.0 said:
You just disconnected the bulbs from the harness or the fog lights and headlight harnesses from the main harness?
Click to expand...

I just disconected the bulbs from the harness both blinker and head lamp bulb. and reconnected them
 
You must log in or register to reply here.

Similar threads

M
Need help!
  • Masonevans726
  • Dec 17, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
244
1996 - 2004 SN95 Mustang -General/Talk- Dec 17, 2025
Masonevans726
M
2
Electrical mayhem
  • 2000ElectricGreen
  • Mar 13, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
285
1996 - 2004 SN95 Mustang -General/Talk- Mar 24, 2026
2000ElectricGreen
2
M
Electrical 1989 mustang dash lights
  • Mustang_65-87
  • May 9, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
1K
Fox 5.0 Mustang Tech May 24, 2025
Mustang_65-87
M
T
2002 V6 3.8L Help Me
  • TheIncompetentMechanic
  • Apr 4, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • 2 3
Replies
50
Views
875
1996 - 2004 SN95 Mustang -General/Talk- May 12, 2026
TheIncompetentMechanic
T
A
Resolved Electrical Help Please
  • Alabama
  • Jan 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
295
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jan 22, 2026
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?