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

89 gt 5.0 starting to give me doubts

  • Thread starter Thread starter BossMustang302
  • Start date Start date Nov 2, 2005

BossMustang302

New Member
Jul 28, 2004
1
0
0
Hamilton NJ
Nov 2, 2005
#1
  • Nov 2, 2005
  • #1
ok wow itz been like a couple months since i been on here ok well im 15 i own an 1989 5.0 gt now when we 1st got it it was a beast now it barley starts sounds like crap..you can here the sqeaks and stuff over the rumbling..and under the hood theres like this group of wires now 4 it to start if it hasnt already we gotta freakin wiggle em now the wires are located on the right side of the car it'z a big group all different colors.... and everytime the wheels turn it makes thiz weird eeeeeeeeee sound now we had it for about 4 years...when we got it it was a brand new paint job and sounded like a dragon..now it's BLAHHH wat can i do here?...cause seriously i have no idea wat the wires are..im gointo try to find out though thanks for the comments
 

BrutalStang

New Member
Aug 2, 2004
261
0
0
PA
Nov 2, 2005
#2
  • Nov 2, 2005
  • #2
a standard tune up from ford, but i'll guess if its not being used properly(i.e. high way cruising with that nice little 8) then old age is just settling in.

after i left mine in the air port for extended period's of time, things didnt seem right at first either, then it was fine.

maybe some fuel injector cleaner, a fresh tank, then let it run for a while.
 

srothfuss

Last night I stabbed the same guy 7 times in a row
Oct 17, 2004
1,796
3
0
Woodward Ave.
Nov 2, 2005
#3
  • Nov 2, 2005
  • #3
Cars get like that due to neglect. Take care of the car and it will feel like brand new.

Brutal suggested a tune up, so do I.
Keep the car clean
Update the shocks / struts
Clean the interior
Wax the paint
Change the brakes
Fix the rusted exhaust


The devil is always in the details... if you don't do the little stuff, than something big always goes wrong. I am not getting on you, but if you don't take care of a 16 year old car than it wont be very rewarding to have around.
 

darthcual

Member
Mar 31, 2005
985
19
18
Arlington, TX
Nov 2, 2005
#4
  • Nov 2, 2005
  • #4
Welcome to our hobby!
 

gt40_2003wes

I did sound a wee bit gay there.
Aug 14, 2005
461
2
48
ky
Nov 2, 2005
#5
  • Nov 2, 2005
  • #5
run a half a can of sea foam through it buy a fuel treatment clean it up and if you have to pay to have a tune.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Nov 2, 2005
#6
  • Nov 2, 2005
  • #6
Where are the wires you have to jiggle? Are they the TFI harness wires?

Good luck.
 

haulbalz

Founding Member
Apr 6, 2002
448
0
0
Nov 3, 2005
#7
  • Nov 3, 2005
  • #7
First. Learn How To Spell, Then Learn How To Type.
 

sunil6784

Member
Mar 31, 2005
620
0
18
Boston, MA
Nov 3, 2005
#8
  • Nov 3, 2005
  • #8
It always seem that clean cars run better...If you take care of a car (tune ups, oil changes, washing/vaccuming) they always seem to take care of you.

Those 4 wires, are they going to the distributor (The tall skinny thing on the front of the engine where the 8 plug wires go to) ? It sounds like it might be a loose plug wire or coil wire...
 

Zero_chance

Founding Member
May 29, 2001
1,244
7
59
Maricopa, AZ
Nov 3, 2005
#9
  • Nov 3, 2005
  • #9
Might even be the wires that have the fusible links that control, for example, the power supply to the pcm and fuel pump relays. Used to happen to my car until I figured out the wire for the PCM relay was holding on by barely a thread of wire.
 
You must log in or register to reply here.

Similar threads

B
No spark. 1990 foxbody 5.0 gt
  • Boogi
  • Nov 16, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
189
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 16, 2025
Boogi
B
G
Resolved Please help! (starting issue)
  • Ghoste
  • May 11, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
476
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 11, 2025
Ghoste
G
Progress Thread Progress Thread- From6to8's 1994 Cobra Supercharger install
  • from6to8
  • Sep 25, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 20 21 22
Replies
420
Views
9K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 6, 2026
from6to8
K
Engine 93 gt new 351 w moter put in and installing ace's kill shot EFI. It turns over but Wan't start? Need Help.
  • kimscales
  • Jun 1, 2024
  • Fox 5.0 Mustang Tech
Replies
1
Views
1K
Fox 5.0 Mustang Tech Jun 2, 2024
AeroCoupe
D
Expired 94 Mustang GT 5.0 HO Convertible Automatic for sale
  • DeanS
  • Aug 7, 2024
  • SN95 Mustangs For Sale (1994-04)
Replies
8
Views
1K
SN95 Mustangs For Sale (1994-04) Jan 16, 2025
JeffVoigt
J
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?