• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

Ignition Switch

  • Thread starter Thread starter golf4283
  • Start date Start date Apr 23, 2009

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Apr 23, 2009
#1
  • Apr 23, 2009
  • #1
Ok so I'm installing my Painless harness in my '66 and the ignition switch has 4 wires going to it which I have hooked up properly but I noticed on the switch there is still one more terminal with nothing attached. It's outside of the plastic area where the other wires are connected. I'm wondering if this needs to be grounded or what goes there.



Thanks,
Dan
 

Tim65GT

Active Member
Feb 24, 2004
1,149
2
39
West Texas
Apr 23, 2009
#2
  • Apr 23, 2009
  • #2
I'm wondering if this needs to be grounded or what goes there.
Click to expand...

Not sure what it is. If you have the other 4 hooked up correctly, it should be good.
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Apr 23, 2009
#3
  • Apr 23, 2009
  • #3
ok I just wanna make sure. It seems everyone's switch has it though cause my original as well as the repro I ordered have it. I'm still having a short somewhere in ym system and it's really getting on my nerves. That and my Starter solenoid just clicks so something is wrong there.

This wiring system is a pain in my butt. It's not hard but if something is wrong it's frustrating as can be.
 

Tim65GT

Active Member
Feb 24, 2004
1,149
2
39
West Texas
Apr 23, 2009
#4
  • Apr 23, 2009
  • #4
I'm still having a short somewhere in ym system and it's really getting on my nerves.
Click to expand...

Can you be more specific?

That and my Starter solenoid just clicks so something is wrong there.
Click to expand...

What is the battery voltage?
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Apr 23, 2009
#5
  • Apr 23, 2009
  • #5
I'm actually just running a battery charger right now so that I'm not too worried about. I am having a problem where the wipers will work for like 1 minute then the entire car loses power and the lights go off and it keeps cycling as if something is shorted out. Everything is grounded to the best of my knowledge.

Also I think my dimmer switch may be broken as my headlights only work in high mode and not in low which is weird.

I think I may have a blown blinker fuse cause with everyhting hooked in correctly if I throw the switch nothing happens.

My right rear tail-light blinker switch wire gets no power no matter what. I have no idea about this one and I tested it to see if it was the bulb but there is just no power running through it.
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Apr 23, 2009
#6
  • Apr 23, 2009
  • #6
I was just reading that battery chargers have a pulsating power so could this be the cause of my power interruption and not a short?

It may also be the reason why when I turn the ignition to start it just makes the solenoid click nonstop with nothing else.

I still feel like it is a grounding issue though but I really have no clue. I'll have to trace all the wires again.
 

70grande

Member
Feb 3, 2009
56
0
6
San Diego, CA, 92115
Apr 23, 2009
#7
  • Apr 23, 2009
  • #7
I used to get that clicking all the time. It's your battery. Thats what was screwing up mine. Also follow all of the ignition connections and make sure they are secured tight. Sounds like you have a heck of a wiring issue on your hands. Good luck.
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Apr 23, 2009
#8
  • Apr 23, 2009
  • #8
It's not that bad of an issue when you're rewiring a whole car haha. We'll see how this goes. It's frustrating as hell but I have learned so much about this car's electric system that once this thing works I'll be able to figure stuff out right away cause I put it all there hah.
 

Tim65GT

Active Member
Feb 24, 2004
1,149
2
39
West Texas
Apr 23, 2009
#9
  • Apr 23, 2009
  • #9
golf4283
I'm actually just running a battery charger right now so that I'm not too worried about. I am having a problem where the wipers will work for like 1 minute then the entire car loses power and the lights go off and it keeps cycling as if something is shorted out. Everything is grounded to the best of my knowledge.
Click to expand...

A battery charger may introduce wierd symptoms. Install a battery with a full charge and see what happens. Troubleshoot one system at a time.

The dimmer switch should be easy to troubleshoot. One wire with power going in when the light switch is on, and the other two outputs should alternate when switched.
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Apr 23, 2009
#10
  • Apr 23, 2009
  • #10
yea I'm pretty sure the dimmer switch as well as the turn signal switch are junk. I think I blew that fuse too so I'll stop on my way home and buy a new battery that I've been putting off for a few weeks now haha.

I knew I had to buy one eventually.
 
You must log in or register to reply here.

Similar threads

T
Electrical Brown Connector #31
  • ta66
  • Jul 26, 2026
  • Fox 5.0 Mustang Tech
Replies
2
Views
132
Fox 5.0 Mustang Tech Jul 30, 2026
ta66
T
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
279
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
M
67 Mustang Ignition Switch Wiring Diagram needed
  • Michaelell
  • Sep 14, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
2
Views
433
1965 - 1973 Classic Mustangs -General/Talk- Jan 3, 2026
Michaelell
M
Alternator not charging
  • SchwarzStock
  • Jul 6, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
2
Views
134
1965 - 1973 Classic Mustangs -General/Talk- Jul 19, 2026
SchwarzStock
Resolved Holley terminator integration into CCRM
  • BrandonMP
  • Feb 25, 2026
  • SN95 4.6L Mustang Tech
Replies
8
Views
384
SN95 4.6L Mustang Tech Aug 23, 2026
fasterthangas
F
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific 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?