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

98 gt fuel pressure issues

  • Thread starter Thread starter chasecollier1984
  • Start date Start date Jun 2, 2026
C

chasecollier1984

New Member
Jun 2, 2026
1
0
1
KY
Jun 2, 2026
#1
  • Jun 2, 2026
  • #1
Hey all new to the group here!!! I have a 98 GT 4.6 5 speed with quite a few bolt ons and a livewire ts+ tuner. I just installed a firewall mounted fpr and a oe replacement fuel pump from auto zone. Shortly after installing the pump my car started cutting out around 3000rpm once it warms up. I can shut the key off and start it back up and it runs great for a couple mins until it loses the prime from the system. I have my fuel pressure set at 38psi on the regulator and when it starts acting up I can watch the pressure drop to around 20 to 25 max psi at wot. I also replaced the ccrm from a low mileage one from a salvage yard. I didn't have these issues until I replaced the pump. Any help I can get on this issue will be greatly appreciated and happy motoring guys and girls...
 
You must log in or register to reply here.

Similar threads

9
1997 gt Starts then dies a few seconds after.
  • 97orange
  • Aug 13, 2026
  • SN95 4.6L Mustang Tech
Replies
5
Views
146
SN95 4.6L Mustang Tech Aug 17, 2026
97orange
9
F
2004 Mustang GT – Fuel Pump Not Priming
  • Fayio
  • Apr 22, 2026
  • SN95 4.6L Mustang Tech
Replies
7
Views
384
SN95 4.6L Mustang Tech Apr 27, 2026
n0v8or
N
M
01 mustang 3.8 fuel pressure issue
  • Mhaley2006
  • May 29, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
4
Views
302
1996 - 2004 SN95 Mustang -General/Talk- Aug 9, 2026
JohnKay
J
I
1994 Cobra - Fuel Pressure Drops Revving at Idle
  • IconicSilverGT500
  • Apr 11, 2026
  • 1994 - 1995 Specific Tech
Replies
16
Views
525
1994 - 1995 Specific Tech Apr 24, 2026
Mcmahst
B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
967
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
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?