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

Fuel System Help Please

  • Thread starter Thread starter BamaStang
  • Start date Start date Jul 9, 2006

BamaStang

New Member
Jul 4, 2006
2
0
0
CENTRAL KENTUCKY
Jul 9, 2006
#1
  • Jul 9, 2006
  • #1
I have got a 89 lx fuel pump will not prime or come on, replaced fuel filter& pump turn the key on& the relay under the seat clicks but nothing else?

Any help would be greatly appreciated.
 

90mustangGT

I felt sorry for girls because
Founding Member
Jan 15, 2002
2,773
17
89
Dallas, GA
Jul 9, 2006
#2
  • Jul 9, 2006
  • #2
Are you getting power to the pump?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Jul 10, 2006
#3
  • Jul 10, 2006
  • #3
I like to start at the FP relay with stuff like this. I probe the terminals in the relay socket (during the prime-out) and note the values.

Jrichker's no start checklist will be of great assistance to you.
Good luck.
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,811
234
Dublin GA
Jul 10, 2006
#4
  • Jul 10, 2006
  • #4
Your answer is in the post you posted in 5.0 Tech. Follow the checklist and you will find & fix the problem.
 

mustangillusion

Founding Member
Jun 24, 2001
74
0
0
Oklahoma
Jul 10, 2006
#5
  • Jul 10, 2006
  • #5
check the inertia switch mounted behind the taillight panel. Make sure it is pressed.
 
You must log in or register to reply here.

Similar threads

4
86 gt replaced fuel pump won’t prime / amp drops in key on position
  • 4eye86fox
  • Jan 10, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
252
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jan 12, 2026
Noobz347
D
Fox 88 foxbody no power to red and black wire at fuel pump relay
  • drod88
  • Dec 1, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
300
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 2, 2025
Mcmahst
G
Help! 93 Mustang 2.3L A4LD dies at idle
  • goofyfoot53
  • Nov 17, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
131
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 17, 2025
goofyfoot53
G
D
89 foxbody fuel pump not priming
  • Dubsantana
  • Jul 6, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
454
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 12, 2025
AeroCoupe
F
2004 Mustang GT – Fuel Pump Not Priming
  • Fayio
  • Apr 22, 2026
  • SN95 4.6L Mustang Tech
Replies
7
Views
171
SN95 4.6L Mustang Tech Apr 27, 2026
n0v8or
N
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?