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

Tach Wiring

  • Thread starter Thread starter Treachery
  • Start date Start date May 17, 2017
T

Treachery

Founding Member
Jun 9, 2002
148
0
17
May 17, 2017
#1
  • May 17, 2017
  • #1
I mounted a 3.5'" Autogage Tachometer on the left-hand side of my dash in the '93 GT and i want to wire it to my headlight switch. I have read many ways to wire this type of tachometer but wiring it to the headlight switch is the easiest for me

tach- 4 wires- red, black, green, white


Tach wire Headlight switch wire
Red -> Tan/White
Green -> Crane Ignition
White -> Light/Blue Red (The tester light dims when i dim the dash light)
Black -> Black (ground)

Would this be an acceptable way to wire it?
 
B

bman91gt

Member
Nov 13, 2015
39
3
8
virginia
May 17, 2017
#2
  • May 17, 2017
  • #2
I may be wrong but I believe the red wire from the tach should be hooked up to a switch wire so when you turn on the ignition you have voltage on it as long as the car is running the rest of the wires look right to me. That's how I did my tach, red wire to switched hot wire ,green wire to negative side of coil, white wire to headlight switch, black wire to ground .
 
Last edited: May 17, 2017
You must log in or register to reply here.

Similar threads

T
Electrical Brown Connector #31
  • ta66
  • Jul 26, 2026
  • Fox 5.0 Mustang Tech
Replies
2
Views
124
Fox 5.0 Mustang Tech Jul 30, 2026
ta66
T
C
Electrical HELP! 1989 5.0 Stick, Voltage Bleed onto Ignition Trigger wire
  • ChickenDeluxe
  • May 14, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
272
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
M
Electrical 1989 mustang dash lights
  • Mustang_65-87
  • May 9, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
2K
Fox 5.0 Mustang Tech May 24, 2025
Mustang_65-87
M
Electrical 91 hatch wiring help needed
  • FastDriver
  • Apr 7, 2026
  • Fox 5.0 Mustang Tech
Replies
2
Views
189
Fox 5.0 Mustang Tech Apr 8, 2026
FastDriver
B
Electrical Fuse 8, Light Green / Black Wire
  • bleedinggreen
  • Jun 23, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
481
Fox 5.0 Mustang Tech Jun 26, 2025
bleedinggreen
B
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?