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

Running/starting/stalling issue.

  • Thread starter Thread starter JayMoney4Twenty
  • Start date Start date Jan 29, 2020

JayMoney4Twenty

New Member
Jan 29, 2020
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1
South chicago
Jan 29, 2020
#1
  • Jan 29, 2020
  • #1
Alright, I'm new here. Any input on my issue would be appreciated.

So I bought a 95 mustang GT 5.0 5 speed a few months ago. I'm having an issue with it. Sometimes for a week straight it will start and run perfectly fine then all of a sudden, while driving, It will completely shut down. Will not start back up, sometimes if i wait 20 minutes or so it will turn over, sometimes it wont, then will not run for a few days and then fine again. I have brought it to 2 mechanics and replace 700 dollars in parts and it's not fixed. When i goto turn the key the "check engine light" will turn on while trying to start it, when it does decide to start i will not see that light when turning the key. One mechanic is telling me that no codes have been pulled, leading him to believe it has something to do with the anti theft system. I hear this is a fairly common issue but nobody seems to have the answer for me as to how to fix the problem and not have to worry about it. Also, sometimes when it wont start and I hook jumper cables up to it, it'll turn over. Already replaced the battery, ignition switch, ignition lock, ecu, new wires, plugs, dist. Cap and rotor, cylinoid, and many others. PLEASE HELP!
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
42,886
21,064
234
Box behind Walmart
Jan 29, 2020
#2
  • Jan 29, 2020
  • #2
Moved to Fox/SN
 

Cheapskate207

The left one hangs a little lower
5 Year Member
Jan 12, 2020
761
541
113
Maine
Jan 29, 2020
#3
  • Jan 29, 2020
  • #3
Could be the coil?
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
27,827
10,508
203
polk county florida
Jan 29, 2020
#4
  • Jan 29, 2020
  • #4
Lets clear some thing up so we can get you looking in the right direction.
is the engine cranking over but not starting up or is the starter not cranking the engine.
You can start here (see what I did ):

Cranks OK, but No Start Checklist for Fuel Injected Mustangs

Cranks OK, but No Start Checklist for Fuel Injected 5.0 Mustangs model years 1986-1995 A word about this checklist before you start: it is arranged in a specific order to put the most likely failure items first. That will save you time, energy and money. Start at the top of the list and work...
www.stangnet.com
94-5 specific stuff is highlighted, follow it step by step, don't skip around.
 
Reactions: Gs1987GT

JayMoney4Twenty

New Member
Jan 29, 2020
4
0
1
South chicago
Jan 30, 2020
#5
  • Jan 30, 2020
  • #5
General karthief said:
Lets clear some thing up so we can get you looking in the right direction.
is the engine cranking over but not starting up or is the starter not cranking the engine.
You can start here (see what I did ):

Cranks OK, but No Start Checklist for Fuel Injected Mustangs

Cranks OK, but No Start Checklist for Fuel Injected 5.0 Mustangs model years 1986-1995 A word about this checklist before you start: it is arranged in a specific order to put the most likely failure items first. That will save you time, energy and money. Start at the top of the list and work...
www.stangnet.com
94-5 specific stuff is highlighted, follow it step by step, don't skip around.
Click to expand...
Yes it cranks everytime when I try to start it. When it starts fine it will not show the check engine light, when it's not going to turn over the check engine light will turn on while cranking it..
 

JayMoney4Twenty

New Member
Jan 29, 2020
4
0
1
South chicago
Jan 30, 2020
#6
  • Jan 30, 2020
  • #6
Cheapskate207 said:
Could be the coil?
Click to expand...
Been replaced..
 

JayMoney4Twenty

New Member
Jan 29, 2020
4
0
1
South chicago
Jan 30, 2020
#7
  • Jan 30, 2020
  • #7
JayMoney4Twenty said:
Yes it cranks everytime when I try to start it. When it starts fine it will not show the check engine light, when it's not going to turn over the check engine light will turn on while cranking it..
Click to expand...
The mechanic I brought it to had brought in 2 car electrical guys and they said the wiring was all good. The only thing they could come up with was it had to be something "alarm system" related which they would not touch. Like I said there were no codes popping up either.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
27,827
10,508
203
polk county florida
Jan 30, 2020
#8
  • Jan 30, 2020
  • #8
Show a pic of the key.
Does it have a aftermarket alarm ?
I think anti theft was an option on 94-5 models, the controller in in the trunk on the drivers side behind the trim, there is a bracket, one side has the keyless entry module and the other side has the anti theft module, anyway you should have a 'theft' light on the dash.

Where is the anti-theft controller module?

Can some one please tell me where the anti-theft controller module is on a 94 gt? My car wont crank over and we narrowed it down to it. Thanks for your help
www.stangnet.com
Your mechanic likely is not versed on older stangs, he may have used his scanner on the obd port inside the car, 94-5 still had the diagnostic port under the hood but also had the port inside under the dash, scanner will not read that one.
Go through the list.
 
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