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

Electrical 12 volts going into coil (on both sides) but nothing coming from coil wire to distributor

  • Thread starter Thread starter rockyracoon
  • Start date Start date Jan 19, 2019
R

rockyracoon

10 Year Member
Nov 23, 2005
874
27
49
margate NJ
Jan 19, 2019
#1
  • Jan 19, 2019
  • #1
like the sub line says. 12 volts going in but no voltage from coil wire (when cranking the motor) i'm wondering if coil wire has too much resistance and burned up the coil.
going back to Autozone tomorrow to swap the coil out.
 
Last edited: Jan 19, 2019

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,265
17,952
224
Massachusetts
Jan 20, 2019
#2
  • Jan 20, 2019
  • #2
You have 12v to chassis ground on both wires into to coil?
 
R

rockyracoon

10 Year Member
Nov 23, 2005
874
27
49
margate NJ
Jan 20, 2019
#3
  • Jan 20, 2019
  • #3
both wires have 12v coming into coil, if I take my voltmeter and touch the connector where the wires are with the positive lead and touch the negative lead to the battery there is 12 volts. that is with the key turned forward.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,265
17,952
224
Massachusetts
Jan 20, 2019
#4
  • Jan 20, 2019
  • #4
12v comes from the ignition through the R/LG wire. The other wire (color varies by year) goes to pin 4 on the ECU which goes to ground


Since you didn't provide year

87/89


90/93
 
You must log in or register to reply here.

Similar threads

Resolved 93 Mustang 5.0 - Cranks but does not start
  • dan50
  • Jul 18, 2026
  • Fox 5.0 Mustang Tech
Replies
6
Views
164
Fox 5.0 Mustang Tech Jul 18, 2026
dan50
R
91 5.0l cranks but no start, fuel pump keeps priming
  • Rhubyn
  • Jun 16, 2024
  • Fox 5.0 Mustang Tech
Replies
7
Views
1K
Fox 5.0 Mustang Tech Jul 29, 2024
4cylredfox89
J
No Spark from Coil to Distributor
  • Jlr202729
  • Mar 25, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 26, 2024
limp
SURGING IDLE / NO IDLE CHECKLIST FOR 1999–2004 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
949
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
Progress Thread Giving an abandoned 88 GT project a new chance at life
  • jaketractor
  • Jan 9, 2025
  • Fox 5.0 Mustang Tech
  • 2
Replies
27
Views
2K
Fox 5.0 Mustang Tech Jul 20, 2025
Noobz347
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?