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

running like garbage please help!!!!

  • Thread starter Thread starter bagnonu91
  • Start date Start date Nov 2, 2008
B

bagnonu91

New Member
Mar 8, 2008
2
0
0
Dallas, Texas
Nov 2, 2008
#1
  • Nov 2, 2008
  • #1
I have an 88 lx 5.0, GT-40 crate motor swap, mass air convert, cobra intake, bassani stainless, griffin aluminum radiator, tremec tko...ect....

The car ran great for about 5 months and then it all started going down hill. Pretty much hell in a hand basket. When i fire it up, its like its only running on 2 cyclinders and sounds like i have a top fuel cam it. It backfires real bad. If i sit at a stop light and dont keep revving the motor the rpms drop real low, and its like it loads up with fuel and fowls the plugs out and it barely wants to go, and ok heres the really weird part. when it does that, sometimes if i make a hard right turn, all the sudden the car runs awesome again, dont know if its a coincedence but man im so sick of replacing things and nothing happening i dont know what to do anymore.

ANY HELP AT ALL WOULD BE AWESOME!!! PLEASE SOMEONE HELP ME!!!!
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Nov 2, 2008
#2
  • Nov 2, 2008
  • #2
Have you pulled codes?
Have you run a cylinder balance test?

Does it actually foul the plugs or does it just feel to you like that's what is happening?

Have you watched fuel pressure or A/F trim while it acts up (and vs when it runs decently)?
 
You must log in or register to reply here.

Similar threads

  • Locked
Engine Help timing possibly
  • K1tha1
  • Apr 26, 2025
  • Fox 5.0 Mustang Tech
Replies
3
Views
218
Fox 5.0 Mustang Tech Apr 26, 2025
Noobz347
L
Help with 1986 GT 5 Speed Please
  • Lcasada1999
  • Mar 20, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
183
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 21, 2026
General karthief
B
I need help with an 06
  • boviske underwood
  • Oct 30, 2025
  • Services - Tuning, Welding, Mechanic, Body Work...
Replies
0
Views
449
Services - Tuning, Welding, Mechanic, Body Work... Oct 30, 2025
boviske underwood
B
S
Need help asap
  • shaggyman65
  • Dec 24, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
238
1996 - 2004 SN95 Mustang -General/Talk- Dec 24, 2025
shaggyman65
S
0
'04 V6 running rich excessively on both banks
  • 04DSGVert
  • Oct 26, 2025
  • SN95 V6 Mustang Tech
Replies
2
Views
293
SN95 V6 Mustang Tech Oct 27, 2025
04DSGVert
0
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?