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

Sputtering and jumping.

  • Thread starter Thread starter FourEyed85
  • Start date Start date Feb 14, 2006
F

FourEyed85

New Member
Nov 17, 2005
34
1
0
Ligas, Az
Feb 14, 2006
#1
  • Feb 14, 2006
  • #1
hey. lately my car has been "sputtering". when i try to give it some "go" in first gear, it starts jerking and sputtering untill about 2k rpm. I have a holley electric fuel pump and it makes a weird noise when I first start the car. but will go away in about 5 minutes. I was thinking that this is the problem.

Will this also happen if I had an exhaust leak from the shorty header to the x pipe?
 

sgarlic

Founding Member
Apr 21, 2001
3,085
1
56
Feb 15, 2006
#2
  • Feb 15, 2006
  • #2
I wouldn't think an exhaust leak would cause that sort of issue, but a fuel pump going south definately could.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Feb 15, 2006
#3
  • Feb 15, 2006
  • #3
We dont see nearly as much carbed stuff as EFI - you are running a carb, right? Jetting was my first thought (did this crop up since it has gotten cold outside?).

And if it arose since your new electric pump, I would toss a gauge on there (low pressure gauges are pretty cheap) and see what the pressure is doing when it acts up.

MHO. Good luck.
 
F

FourEyed85

New Member
Nov 17, 2005
34
1
0
Ligas, Az
Feb 16, 2006
#4
  • Feb 16, 2006
  • #4
yeah i got a carb. Holley 750Double Pumper. thx
 
You must log in or register to reply here.

Similar threads

J
Engine Tuning...?
  • justadude07
  • May 30, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
226
Fox 5.0 Mustang Tech Jun 6, 2026
Blown88GT
8
Engine Rough idle and aggressive sputtering when accelerating
  • 88vertible
  • Aug 13, 2025
  • Fox 5.0 Mustang Tech
Replies
4
Views
1K
Fox 5.0 Mustang Tech Dec 13, 2025
Jarhead67
J
7
Engine Random hanging idle
  • 706 Saleen
  • Feb 11, 2026
  • Fox 5.0 Mustang Tech
Replies
9
Views
670
Fox 5.0 Mustang Tech Feb 19, 2026
86HO5.0
8
K
86 GT Water Pump
  • Kade5114
  • May 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
103
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 11, 2026
nickyb
B
Engine Another no start after washing engine bay
  • bruno
  • Apr 26, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
24
Views
737
Fox 5.0 Mustang Tech May 7, 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?