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

cold relay help

  • Thread starter Thread starter Doc90
  • Start date Start date May 9, 2006
D

Doc90

New Member
Apr 18, 2006
38
0
0
texas
May 9, 2006
#1
  • May 9, 2006
  • #1
hey guys i need some advice my fuel pump relay does not cut off after priming when it is cold out side it will just run and run you can get it to start but you have to keep giving it gas after it has been run like that for a few minutes then you can get it to prime and stop run just fine i have replaced the relay about three times and ive had the car about a month and a half. could it be the fuel pump or the wiring to the relay? sometimes the relay sounds lke it is buzzing too?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 9, 2006
#2
  • May 9, 2006
  • #2
WHen it does this, put a meter on the FP relay ground (tan/lt grn IIRC. CHeck the schematic for your model year) and see if it is remaining grounded after the time-out. If it isnt but the relay stays energized, the relay is possibly bad.

Good luck.
 
You must log in or register to reply here.

Similar threads

Engine Fuel not pumping
  • Creomod
  • Apr 13, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
43
Views
695
Fox 5.0 Mustang Tech May 3, 2026
Shakerhood
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
Electrical AC relay location on 86?
  • TIGGER
  • Aug 26, 2025
  • Fox 5.0 Mustang Tech
Replies
1
Views
158
Fox 5.0 Mustang Tech Aug 26, 2025
AeroCoupe
New fuel pump relay
  • Scrapla347
  • Nov 3, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
753
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 8, 2025
Scrapla347
W
Need help! 1989 mustang
  • wickedzach487
  • Mar 3, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
237
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 4, 2026
AeroCoupe
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?