• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Electrical 89 mustang keeps blowing #1 fuse?

  • Thread starter Thread starter Creomod
  • Start date Start date May 17, 2024

Creomod

5 Year Member
Sep 14, 2018
525
42
48
San Antonio,Texas
May 17, 2024
#1
  • May 17, 2024
  • #1
Just wondering what could be blowing out this fuse? It shows stopping lamps,hazard lights,3rd brake lamp & speed control? What is the speed control guys?
 

Attachments

  • IMG_0442.webp
    79.6 KB · Views: 118

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,882
4,006
183
Claremore, OK
May 17, 2024
#2
  • May 17, 2024
  • #2
What is cruise control?
 

Creomod

5 Year Member
Sep 14, 2018
525
42
48
San Antonio,Texas
May 17, 2024
#3
  • May 17, 2024
  • #3
AeroCoupe said:
What is cruise control?
Click to expand...
Ahhhh but dam i haven’t messed with that.Think the Speedo sensor have anything to do with that? Can a bad hazard light switch itself cause this?I can use turn signal but they won’t work if I have hazard switch on and that’s with a blown #1 fuse .If I turn the switch off then the turn signals work. Also I did recently remove steering wheel i have a momo I dont have the horn hooked up think it could be the wires in there touching metal can cause this?
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
May 18, 2024
#4
  • May 18, 2024
  • #4
What about disconnecting all of the items tied into that fuse, one at a time, until the fuse doesn't blow?
 
Reactions: Creomod

Bullitt347

I have been doing it wrong this whole time
15 Year Member
Mar 23, 2007
3,971
2,944
194
Middle of Maine
May 18, 2024
#5
  • May 18, 2024
  • #5
Obviously he is running too small of a fuse.
Put a 50 amp fuse in.
Where the smoke comes out of the wire is where the problem is...
 
Reactions: Creomod, limp and General karthief

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,882
4,006
183
Claremore, OK
May 18, 2024
#6
  • May 18, 2024
  • #6
I would immediately check the horn wire that you did not hook up.

When the hazards are on I don’t believe the turn signals will work so regardless of the fuse being blown that seems normal.
 
Reactions: Creomod

Creomod

5 Year Member
Sep 14, 2018
525
42
48
San Antonio,Texas
May 18, 2024
#7
  • May 18, 2024
  • #7
limp said:
What about disconnecting all of the items tied into that fuse, one at a time, until the fuse doesn't blow?
Click to expand...
Sometimes it doesn’t blow right away it does it sometime while I’m driving it
 
You must log in or register to reply here.

Similar threads

B
Electrical Fuse 8, Light Green / Black Wire
  • bleedinggreen
  • Jun 23, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
438
Fox 5.0 Mustang Tech Jun 26, 2025
bleedinggreen
B
Electrical Issues with my 2006 mustang gt
  • VerneVdV
  • May 22, 2026
  • 2005 - 2009 Specific Tech
Replies
0
Views
90
2005 - 2009 Specific Tech May 22, 2026
VerneVdV
F
2003 Mach 1 - F1.28 Fuse blows on KOEO
  • fr500mach
  • Jul 14, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
3
Views
211
1996 - 2004 SN95 Mustang -General/Talk- Jul 19, 2025
fr500mach
F
G
Help! Radio, door chime fuse keeps blowing.
  • goofyfoot53
  • Sep 9, 2025
  • 2.3L (N/A & Turbo) Tech
Replies
1
Views
292
2.3L (N/A & Turbo) Tech Sep 9, 2025
91AOD5.0LX
M
Need help!
  • Masonevans726
  • Dec 17, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
240
1996 - 2004 SN95 Mustang -General/Talk- Dec 17, 2025
Masonevans726
M
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang 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?