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1966 Ford Thunderbird Lost all electrical to car

Tiny
CHITOWN2
  • MEMBER
  • 1966 FORD THUNDERBIRD
  • 7.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 101,000 MILES
1966 Ford Thunderbird.
When I go to start the car I get nothing.
The Headlights do not work.
It seems like I lost all electrical!
Car was started just 3 hours prior to this failure.
Battery is just fine.
Thank-you for your time.
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Tuesday, April 8th, 2014 AT 9:00 AM

8 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just as far as diagnostic routine, I'd still have to check your battery. Have you had the battery tested? If you have a digital multimeter you can do some testing, yourself.

Check battery cables, check fusible links. Check fuses in your fuse box, see if any fuses are hot/voltage.

I don't know if I can find any wiring diagrams for this model year?
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Tuesday, April 8th, 2014 AT 9:53 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I found this wiring, just follow the positive battery cable, check for voltage at all the branches off the positive battery cable.

The negative battery cable can also cause problems.
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Tuesday, April 8th, 2014 AT 10:49 AM
Tiny
CHITOWN2
  • MEMBER
  • 7 POSTS
Hello, Thank-you for your time.
The battery is just fine.
When I try and go to even just start it. It is sparking at the battery.
It has to be something electrical.
And I have no idea where to start looking.
Again, Thanks
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Wednesday, April 9th, 2014 AT 12:44 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Without being able to look at it, I don't know what is going on? Battery cables?
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Wednesday, April 9th, 2014 AT 8:00 AM
Tiny
CHITOWN2
  • MEMBER
  • 7 POSTS
Thank-you for your response.
It cannot be the Battery cables because It started
3 hours prior.
I even used Jumper Cables from my car to the T-Bird and still had no lights or anything electrical.
Thank-you for your time.
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Wednesday, April 9th, 2014 AT 9:22 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Anything electrical, just pick a component and track it for voltage and ground. I already told you how to do that.

You never know when a battery connection or whatever can go bad.

Have a good day.
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Wednesday, April 9th, 2014 AT 11:50 AM
Tiny
CHITOWN2
  • MEMBER
  • 7 POSTS
That is exactly what I will do.
I am sorry for repeating my questions.
I will let you know what I come up with.
Thank-you so much!
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Wednesday, April 9th, 2014 AT 12:14 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I hope you got it going your way?
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Thursday, June 25th, 2015 AT 7:41 AM

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