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

Electrical HELP !! Driving and just quit...

  • Thread starter Thread starter Stang1988
  • Start date Start date Sep 18, 2020
  • 1
  • 2
Next
1 of 2 Next Last
S

Stang1988

New Member
Sep 23, 2019
8
1
1
St. Albert
Sep 18, 2020
#1
  • Sep 18, 2020
  • #1
I have an '88 Fox that is pretty much stock. I replaced my ignition relay (firewall) a few days ago and this seemed to solve my issue with "missing". I started her yesterday to go get a car wash and it drove great. (5 gear). As I was pulling away from a stop light and turning the corner, all of a sudden it just quit with no warning or hesitation. I saw the tach drop to zero, and lost everything. It would not start, however, I did get a "clicking" sound at the relay.. New battery last year and alternator is only about 5 years old.

I just found out there was a recall regarding the ignition switch in the steering column and not sure if it was ever changed. I haven't looked yet to see if it's the original or not. I would think this would cause the battery to drain explaining the almost dead battery. It only sat for about 5 days until this happened yesterday... Thoughts?? I'm starting to get quite frustrated and ANY help or suggestions would be most appreciated.
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Sep 18, 2020
#2
  • Sep 18, 2020
  • #2
How mechanically inclined are you?
The ignition switch would be a good place to start.
 
Reactions: Shakerhood
S

Stang1988

New Member
Sep 23, 2019
8
1
1
St. Albert
Sep 18, 2020
#3
  • Sep 18, 2020
  • #3
I'm quite mechanically inclined.. That's exactly what I was thinking. Is there a way to tell if it's the original or not?

Just because there was a recall doesn't mean the previous owner(s) dealt with it. I just tried to start it again.. now I get a loud buzzing sound from the relay and it seems hot. I know, one issue at a time. I'm also charging the battery as it seemed almost dead.
 
Last edited: Sep 18, 2020

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Sep 19, 2020
#4
  • Sep 19, 2020
  • #4
You need to start with a freshly charged battery, after you juice it up take it to auto something or other and get it checked, low voltage/slow crank heats stuff up and kills cables and solenoids, starter really quickly.
The starter switch will show brown spots on the connector and burnt wires.
 

dgollem

20+ Year Stangneter
May 5, 2004
211
33
49
Waldorf MD
Sep 19, 2020
#5
  • Sep 19, 2020
  • #5
The ignition switches are prone to fail on these cars due to age. They are not that hard to change, just have to pull the covers off of the steering column and if I remember right lower the column the switch sits on top of the column. The switch is held on with anti tamper screws but I was able to get mine of with some vice grips. If you can but a motorcraft replacement I had one of the aftermarkets fail after about a year. Generally what happens is the plastic cracks and the contact inside the switch then make erratic and intermittent contact. This is the actual electrical switch not the mechanical switch the key goes into. Good Luck
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Sep 19, 2020
#6
  • Sep 19, 2020
  • #6

No Crank Checklist

No Crank checklist for 5.0 Mustangs Revised 24-Oct-2013 to update voltage drop figures. No crank, slow crank and stuck starter solenoid problems have the same root causes – low battery voltage and poor connections. For that reason, they are...
stangnet.com
This shows you how to find what the problem is, also talks about the security screws on the switch.
 

Potomus Pete

I'm still waiting for the fully nude shots
5 Year Member
Mar 7, 2019
3,308
1,223
153
Sarasota Florida
Sep 19, 2020
#7
  • Sep 19, 2020
  • #7
What about ignition module......Will it start again when cooled. My aftermarket column module got bound up after a few months and I had to take the whole thing apart and redo it. The tightness of the security screws had to be just right. I had one really tight which threw it off.
 
Reactions: 2Blue2

Rdub6

So while I wait to figure out my rear end issues
5 Year Member
Dec 29, 2017
3,953
2,932
153
Long Island, NY
Sep 19, 2020
#8
  • Sep 19, 2020
  • #8
dgollem said:
The ignition switches are prone to fail on these cars due to age. They are not that hard to change, just have to pull the covers off of the steering column and if I remember right lower the column the switch sits on top of the column. The switch is held on with anti tamper screws but I was able to get mine of with some vice grips. If you can but a motorcraft replacement I had one of the aftermarkets fail after about a year. Generally what happens is the plastic cracks and the contact inside the switch then make erratic and intermittent contact. This is the actual electrical switch not the mechanical switch the key goes into. Good Luck
Click to expand...


+1 on the vice grips to get original screws out.
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Sep 19, 2020
#9
  • Sep 19, 2020
  • #9
 

nickyb

I gotta say i never painted my nuts, Never Ever
15 Year Member
Apr 3, 2009
2,979
1,626
153
nevada
Sep 19, 2020
#10
  • Sep 19, 2020
  • #10
When I replaced my switch years ago I slipped a zip tie around it as a back up in case it failed.That was about eight years ago.
 
Reactions: Monkeybutt2000

Potomus Pete

I'm still waiting for the fully nude shots
5 Year Member
Mar 7, 2019
3,308
1,223
153
Sarasota Florida
Sep 19, 2020
#11
  • Sep 19, 2020
  • #11
Mine almost caught fire. Quite a lot of power going thru that thing.
 

Rdub6

So while I wait to figure out my rear end issues
5 Year Member
Dec 29, 2017
3,953
2,932
153
Long Island, NY
Sep 19, 2020
#12
  • Sep 19, 2020
  • #12
nickyb said:
When I replaced my switch years ago I slipped a zip tie around it as a back up in case it failed.That was about eight years ago.
Click to expand...

I just changed mine a few months back. Probably should have done the zip tie thing! I’ll have to remember if I ever open up the column again. Good idea!
 
Reactions: nickyb

nickyb

I gotta say i never painted my nuts, Never Ever
15 Year Member
Apr 3, 2009
2,979
1,626
153
nevada
Sep 19, 2020
#13
  • Sep 19, 2020
  • #13
Rdub6 said:
I just changed mine a few months back. Probably should have done the zip tie thing! I’ll have to remember if I ever open up the column again. Good idea!
Click to expand...
always looking to share what worked for me.
 
Reactions: Rdub6
S

Stang1988

New Member
Sep 23, 2019
8
1
1
St. Albert
Sep 26, 2020
#14
  • Sep 26, 2020
  • #14
I changed out the ignition switch and it was the original. Not done despite the recall. It started no problem. I shut it off and now the relay (new) buzzes. Checked all grounds and they look good. I'm charging the battery to a full charge to see if that is part of the issue. Can a new relay be defective right out of the box ?
 
S

Stang1988

New Member
Sep 23, 2019
8
1
1
St. Albert
Sep 26, 2020
#15
  • Sep 26, 2020
  • #15
Ok... got a new relay and still clicks. Tried jumping the relay.. click.. going to check ground at starter .. kinda frustrated..
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Sep 26, 2020
#16
  • Sep 26, 2020
  • #16
So your starter is not engaging?
 
Reactions: Stang1988
S

Stang1988

New Member
Sep 23, 2019
8
1
1
St. Albert
Sep 27, 2020
#17
  • Sep 27, 2020
  • #17
No, starter is not doing anything. I'm going to try boosting it today .
 
N

NXcoupe

Active Member
Dec 3, 2009
80
27
28
Dayton, OH
Sep 27, 2020
#18
  • Sep 27, 2020
  • #18
This is where a voltmeter would come in handy.
 
Reactions: Stang1988

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Sep 27, 2020
#19
  • Sep 27, 2020
  • #19
Do a voltage drop test starting at the battery or google ' no cranck checklist.
 
Reactions: Stang1988

Potomus Pete

I'm still waiting for the fully nude shots
5 Year Member
Mar 7, 2019
3,308
1,223
153
Sarasota Florida
Sep 27, 2020
#20
  • Sep 27, 2020
  • #20
Im feelin for this guy. And knowing the feelin of this guy. Need a lot more information to help.
 
Reactions: Stang1988
  • 1
  • 2
Next
1 of 2 Next Last
You must log in or register to reply here.

Similar threads

A
1987 5.0 speed density Foxbody crank no start
  • Alan2204
  • May 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
251
Fox 5.0 Mustang Tech May 30, 2026
Mcmahst
C
Electrical HELP! 1989 5.0 Stick, Voltage Bleed onto Ignition Trigger wire
  • ChickenDeluxe
  • May 14, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
208
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
Electrical Issues with my 2006 mustang gt
  • VerneVdV
  • May 22, 2026
  • 2005 - 2009 Specific Tech
Replies
0
Views
78
2005 - 2009 Specific Tech May 22, 2026
VerneVdV
E
2007 GT Stalls when lights or a/c turned on
  • ejscarfo
  • Jun 22, 2026
  • 2005 - 2009 Specific Tech
Replies
2
Views
115
2005 - 2009 Specific Tech Jun 29, 2026
ejscarfo
E
B
Electrical Why does my fox body keep frying eecs
  • brandyn200
  • Jun 20, 2026
  • Fox 5.0 Mustang Tech
Replies
8
Views
217
Fox 5.0 Mustang Tech Jun 25, 2026
AeroCoupe
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?