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

Car bucks

  • Thread starter Thread starter 91stangman
  • Start date Start date Mar 30, 2026
9

91stangman

Member
Sep 8, 2019
4
3
13
Elizabethtown,ky
Mar 30, 2026
#1
  • Mar 30, 2026
  • #1
I have a 91 get it bucks when cold smooths out when warm 5 speed fuel injected
 

DadLife0724

Active Member
Mar 22, 2024
261
188
53
Cooperstown, PA
Mar 30, 2026
#2
  • Mar 30, 2026
  • #2
wait for it....
 

gkomo

now i can hopefully expect to receive the shaft
Aug 2, 2024
2,128
1,366
133
San Diego, CA
Mar 30, 2026
#3
  • Mar 30, 2026
  • #3
No likes given haha
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
42,931
21,103
234
Box behind Walmart
Mar 30, 2026
#4
  • Mar 30, 2026
  • #4
First... Post pics! LoL


Next, pull codes and pickup a new IAC sensor gasket so that you can pull, inspect, and clean the one you have.

After that, I might recommend a base idle reset but you should do the other things, first.
 
Reactions: 91stangman, General karthief and DadLife0724

nickyb

I gotta say i never painted my nuts, Never Ever
15 Year Member
Apr 3, 2009
2,972
1,618
153
nevada
Mar 30, 2026
#5
  • Mar 30, 2026
  • #5
Pics of car and engine please
 
Reactions: DadLife0724
9

91stangman

Member
Sep 8, 2019
4
3
13
Elizabethtown,ky
Mar 31, 2026
#6
  • Mar 31, 2026
  • #6
nickyb said:
Pics of car and engine please
Click to expand...
 
Reactions: Mindseye007, DadLife0724 and Noobz347

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,796
3,928
183
Claremore, OK
Mar 31, 2026
#7
  • Mar 31, 2026
  • #7
Instead of my usual “wtf don’t people list what all has been done to the car so we can begin to help” I’m just going to ask what has been done to the car. I am doubting the motor is stock so spill the beans here. Also isn’t on a stock ECU and if so is it chipped and if not the stock ECU what is it?
 
Reactions: slow84lx and Mindseye007
9

91stangman

Member
Sep 8, 2019
4
3
13
Elizabethtown,ky
Mar 31, 2026
#8
  • Mar 31, 2026
  • #8
AeroCoupe said:
Instead of my usual “wtf don’t people list what all has been done to the car so we can begin to help” I’m just going to ask what has been done to the car. I am doubting the motor is stock so spill the beans here. Also isn’t on a stock ECU and if so is it chipped and if not the stock ECU what is it?
Click to expand...
.30 over stock heads with 1.76 roller rockers and original ecu stock ignition
 

gkomo

now i can hopefully expect to receive the shaft
Aug 2, 2024
2,128
1,366
133
San Diego, CA
Mar 31, 2026
#9
  • Mar 31, 2026
  • #9
Stock cam?
 
9

91stangman

Member
Sep 8, 2019
4
3
13
Elizabethtown,ky
Mar 31, 2026
#10
  • Mar 31, 2026
  • #10
gkomo said:
Stock cam?
Click to expand...
Sorry b-cam someone said it could be the coil
 
8

86HO5.0

Active Member
Apr 18, 2023
240
153
53
Raleigh, NC
Mar 31, 2026
#11
  • Mar 31, 2026
  • #11
Doubt it's the coil. They are usually either good or bad (completely DOA). When did the issues start, did it start after the cam install?

Any codes? What's the TPS voltage at idle and WOT? Timing?
 

Mindseye007

5 Year Member
Oct 21, 2020
556
130
63
ontario
Apr 19, 2026
#12
  • Apr 19, 2026
  • #12
91stangman said:
Click to expand...
Looks sweet what percent is your tint ?
 
You must log in or register to reply here.

Similar threads

U
No fuel pump relay in harness
  • Uli661
  • May 18, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
109
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 1, 2026
Uli661
U
J
Engine Tuning...?
  • justadude07
  • May 30, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
139
Fox 5.0 Mustang Tech Jun 6, 2026
Blown88GT
K
88 speed density misfire and bucking
  • kush
  • May 29, 2026
  • Fox 5.0 Mustang Tech
Replies
9
Views
133
Fox 5.0 Mustang Tech Jun 8, 2026
DadLife0724
C
98 gt fuel pressure issues
  • chasecollier1984
  • Jun 2, 2026
  • SN95 4.6L Mustang Tech
Replies
0
Views
31
SN95 4.6L Mustang Tech Jun 2, 2026
chasecollier1984
C
Z
Gauge cluster swap
  • Zeke1995
  • Jul 14, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
11
Views
263
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 16, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?