• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Leaking Injector??

  • Thread starter Thread starter blue46gt00
  • Start date Start date Jun 20, 2007

blue46gt00

Member
Mar 30, 2005
83
0
6
Jun 20, 2007
#1
  • Jun 20, 2007
  • #1
Noticed at the track towards my last pass that when I would cycle the key the fuel pressure would hit 41 psi and slowly fall to 38psi. When the car is running it seams fine. Good fuel pressure. Looked for fuel leaks and could not find anything. Before the when I would cycle the fuel pump it would stay at 41psi. Any ideas?? Should I replace the fuel injectors. I'm running 42lbs injectors.
 

cooper58d2002

New Member
Jan 3, 2006
98
0
0
Hope Mills NC
Jun 20, 2007
#2
  • Jun 20, 2007
  • #2
what was the fuel level when it did it?
 
C

chuck943

New Member
Oct 26, 2002
262
0
0
north carolina
Jun 20, 2007
#3
  • Jun 20, 2007
  • #3
Does it stay at 38 PSI? That sounds pretty normal, should stay within 5 PSI for 1 minute on fuel pressure leak down test.
 

blue46gt00

Member
Mar 30, 2005
83
0
6
Jun 20, 2007
#4
  • Jun 20, 2007
  • #4
1/4 of a tank. Yes it stays at 38psi
 

cooper58d2002

New Member
Jan 3, 2006
98
0
0
Hope Mills NC
Jun 20, 2007
#5
  • Jun 20, 2007
  • #5
not for sure but possible could be the secondary pickup on your in tank pump may not be picking up fuel. before you start tearing into the injectors you might try filling it to at least half a tank and then trying it. if not then maybe check the impedance in your injector harness. just a thought
 

cooper58d2002

New Member
Jan 3, 2006
98
0
0
Hope Mills NC
Jun 20, 2007
#6
  • Jun 20, 2007
  • #6
i think 7.9 to 8.1 ohms is the tolerance
 
You must log in or register to reply here.

Similar threads

I
1994 Cobra - Fuel Pressure Drops Revving at Idle
  • IconicSilverGT500
  • Apr 11, 2026
  • 1994 - 1995 Specific Tech
Replies
16
Views
363
1994 - 1995 Specific Tech Apr 24, 2026
Mcmahst
L
Ls swap mustang fuel pressure issue
  • lsmustang04
  • Oct 1, 2025
  • Other Auto Tech
Replies
2
Views
254
Other Auto Tech Oct 2, 2025
rednotch
B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
827
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
S
Fuel rail help
  • stang9150
  • Mar 3, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
10
Views
255
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 5, 2026
stang9150
S
F
Trouble Shooting Sudden Shift of AFR at low RPM
  • Farva_84
  • Jun 6, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
450
SN95 4.6L Mustang Tech Jun 8, 2025
Farva_84
F
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L 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?