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

Cylinder not Firing

  • Thread starter Thread starter foxmustangman
  • Start date Start date Mar 21, 2010

foxmustangman

Member
Jun 20, 2007
196
1
16
Idaho
Mar 21, 2010
#1
  • Mar 21, 2010
  • #1
Okay so my #5 won't ignite. I just end up with gas spilling out of my tailpipe. I know its this cylinder because it stops when I unplug the injector. I have spark so I'm guessing that there's just too much fuel for it to ignite. I also know its not the injector because i switched injectors for a new one.

Obviously electrical? But how? What can i do to solve this?
Thanks
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Mar 21, 2010
#2
  • Mar 21, 2010
  • #2
Check to see if the injector is being constantly energized. If so, look for pinched (to ground) injector wiring.

Also pull the plug and make sure it's not broken or damaged.
 
You must log in or register to reply here.

Similar threads

A
1987 5.0 speed density Foxbody crank no start
  • Alan2204
  • May 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
224
Fox 5.0 Mustang Tech May 30, 2026
Mcmahst
Engine Hiccup at full throttle
  • keel
  • Jun 2, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
30
Views
425
Fox 5.0 Mustang Tech Jun 10, 2026
Noobz347
M
Misfire
  • Mike3
  • May 30, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
1
Views
66
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 30, 2026
Mike3
M
B
Fuel 1990 mustang gt 5.0 no ground signal to fire injectors
  • brandyn200
  • Sep 5, 2025
  • Fox 5.0 Mustang Tech
Replies
6
Views
246
Fox 5.0 Mustang Tech Sep 6, 2025
Noobz347
C
Engine Cylinder 5,,7, & 8 run significantly cooler than the other cylinders
  • Crisfixes
  • Sep 27, 2025
  • Fox 5.0 Mustang Tech
Replies
1
Views
223
Fox 5.0 Mustang Tech Sep 27, 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?