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

WHAT FUEL PRESURE?

  • Thread starter Thread starter mustangnick
  • Start date Start date Jun 19, 2006

mustangnick

Member
Sep 25, 2004
30
0
7
CHICAGO
Jun 19, 2006
#1
  • Jun 19, 2006
  • #1
THIS MAY BE A STUPID QUESTION BUT, WHEN YOU HAVE A FUEL PRESSURE GAGE HOOKED UP SHOULDN'T YOUR PRESSURE IN INCREASE WHEN YOU GIVE IT GAS? MINE TENDS TO DROP DOWN TO HIGH 20'S.
 
W

wicked89

New Member
May 15, 2006
2
0
0
Jun 19, 2006
#2
  • Jun 19, 2006
  • #2
No the pressure doesnt increase when you hit the throttle, if its decreasing very much it means your fuel pump isnt keeping up. I had that problem when i bought 30lb injectors and tried to run the stock pump, everytime i hit the gas the pressure would drop drastically!
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Jun 19, 2006
#3
  • Jun 19, 2006
  • #3
The pressure should initially dip for a second and then (if you went to WOT) it comes back up higher than it was at idle (by about 5 PSIG).

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

Similar threads

M
01 mustang 3.8 fuel pressure issue
  • Mhaley2006
  • May 29, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
169
1996 - 2004 SN95 Mustang -General/Talk- May 29, 2026
Mhaley2006
M
D
Fuel Erratic Fuel Pressure 1985 GT
  • DienstXIV
  • Jan 14, 2026
  • Fox 5.0 Mustang Tech
Replies
16
Views
706
Fox 5.0 Mustang Tech Jan 16, 2026
AeroCoupe
I
1994 Cobra - Fuel Pressure Drops Revving at Idle
  • IconicSilverGT500
  • Apr 11, 2026
  • 1994 - 1995 Specific Tech
Replies
16
Views
461
1994 - 1995 Specific Tech Apr 24, 2026
Mcmahst
C
98 gt fuel pressure issues
  • chasecollier1984
  • Jun 2, 2026
  • SN95 4.6L Mustang Tech
Replies
0
Views
92
SN95 4.6L Mustang Tech Jun 2, 2026
chasecollier1984
C
A
1987 5.0 speed density Foxbody crank no start
  • Alan2204
  • May 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
315
Fox 5.0 Mustang Tech May 30, 2026
Mcmahst
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?