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

engine shakes

  • Thread starter Thread starter wruddy
  • Start date Start date Apr 17, 2005
W

wruddy

New Member
Feb 2, 2003
71
0
0
Oxford, PA
Apr 17, 2005
#1
  • Apr 17, 2005
  • #1
long story - short - 94 gt stock

Engine shake came on quick.
Done so far....
*Changed fuel filter, plugs, wires, cap, rotor, pvc valve
*clean MAF
*clean K&N air filter
*looked and did not find any vacumn line leaks
*Hook up two cans injector cleaner to fuel rails and ran it thru - improved 80%
*ran two cans injector thru two tanks of gas - no improvement.
*pulled injectors, soaked them in cleaner, replaced one that was not allowing fuel through. Car ran the best it has ever run with no engine shake and lots of new found pickup for 30 miles. then shake came back slowly until it is now shaking so bad I am afraid to drive it.

what next - clean fuel tank, blow out fuel lines, reclean injectors?

Any ideas or suggestions welcome.
 

green

New Member
Apr 26, 2003
291
0
0
Apr 17, 2005
#2
  • Apr 17, 2005
  • #2
if its shakeing that bad i would take off the serpentine belt and check out the harmonic balancer.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,287
17,984
224
Massachusetts
Apr 17, 2005
#3
  • Apr 17, 2005
  • #3
How are the motor mounts???
 
I

Idwitheld-1`

New Member
Nov 30, 2003
335
0
0
Portland Oregon
Apr 17, 2005
#4
  • Apr 17, 2005
  • #4
what is the fuel pressure at?
 

vristang

15 Year Member
Mar 31, 2005
4,933
101
124
Seattle
Apr 17, 2005
#5
  • Apr 17, 2005
  • #5
Is there a loss of power? Does the shake vary with engine speed or load? Are there any unusual sounds coming from the motor/trans? Does the motor shake when you take it out of gear? Is there a difference between when you are driving and sitting at a stop?
 

SMOKEDYA

20+ Year Stangneter
Jul 13, 2003
3,637
8
79
Tucson AZ
Apr 17, 2005
#6
  • Apr 17, 2005
  • #6
i would say harmonic balencer as well! peace



john
 
Y

yogi_stvl

Member
Aug 26, 2004
53
0
7
Sacramento
Apr 17, 2005
#7
  • Apr 17, 2005
  • #7
my vote is for motor mounts... engine movement would be very evident if the mounts suck
 
You must log in or register to reply here.

Similar threads

Electrical 88 EEC Injectors batch firing ?
  • Dustin 86GT
  • Dec 8, 2025
  • Fox 5.0 Mustang Tech
Replies
10
Views
520
Fox 5.0 Mustang Tech Jan 8, 2026
gkomo
9
Forced Induction Prepping for supercharger on non-stock build
  • 91fox427
  • Nov 25, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
472
Fox 5.0 Mustang Tech Jan 5, 2026
Qtrhrse23
G
Sputtering/misfiring below 2500rpm
  • Godless
  • Sep 14, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
5
Views
451
2005 - 2014 S-197 Mustang -General/Talk- Sep 14, 2025
gkomo
F
1986 mustang no start
  • foxyjamss221
  • Oct 11, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
356
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 13, 2025
foxyjamss221
F
D
SN95 V6 1994 occasional rpm surge while driving---where should I start?
  • DPP
  • Aug 30, 2025
  • SN95 V6 Mustang Tech
Replies
4
Views
485
SN95 V6 Mustang Tech May 5, 2026
DPP
D
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?