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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Electrical nightmare

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Old Mar 9, 2015 | 10:23 PM
  #1  
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Electrical nightmare

1969 F100Got headlights and tail lights ONLY .. All new bulbs, ground wires replaced, turn signal switch in steering column replaced. Brake light switch new...HELP!!
 
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Old Mar 9, 2015 | 11:08 PM
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orich
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So, I'm guessing no dash lights?
If so did you turn the light switch as this is how you turn them on& off or dim them.
 
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Old Mar 9, 2015 | 11:23 PM
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Do the hazards work?

If I had your troubles, I'd read wiring schematic diagram and do some troubleshooting by verifying power with a voltage meter at different points where there should power and trace it back to the source of where the signal voltage is supposed to originate.

I think it's called "troubleshooting".
 
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Old Mar 10, 2015 | 12:48 AM
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Welcome to FTE.

Like HIO Silver said, I would go here and read some wiring schematics for your truck.
Luckily, the wiring on these trucks is pretty basic.
Other than that I am not too sure what to tell you.
If you follow the schematic and compare it to the wiring currently in your truck,
eventually you will find out what is causing these issues.
You can go here and make a post in the Electrical Systems / Wiring
section and get some good help / information from Franklin2.

Best of luck,

Mister_King
 
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Old Mar 10, 2015 | 04:01 AM
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Dash lights

Originally Posted by orich
So, I'm guessing no dash lights?
If so did you turn the light switch as this is how you turn them on& off or dim them.

Yep, dash lights work and in cab courtesy light.
 
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Old Mar 10, 2015 | 04:18 AM
  #6  
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Hazards

Originally Posted by HIO Silver
Do the hazards work?

If I had your troubles, I'd read wiring schematic diagram and do some troubleshooting by verifying power with a voltage meter at different points where there should power and trace it back to the source of where the signal voltage is supposed to originate.

I think it's called "troubleshooting".
Ha, Yep I know what it is called and NO the hazards don't work. I have fluked metered different interception points in the wiring harness checking for continuity and for dead shorts. Replace both turn signal and emergency flashers, replaced turn signal accessembly switch in the steering column. I DO have a wiring schematic and have checked. That's why I am on here to hopefully get some other clues as to what to do next. I am very familiar with Root Cause Analyse. Thank You
 
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Old Mar 10, 2015 | 04:21 AM
  #7  
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Schematic

Originally Posted by Mister_King
Welcome to FTE.

Like HIO Silver said, I would go here and read some wiring schematics for your truck.
Luckily, the wiring on these trucks is pretty basic.
Other than that I am not too sure what to tell you.
If you follow the schematic and compare it to the wiring currently in your truck,
eventually you will find out what is causing these issues.
You can go here and make a post in the Electrical Systems / Wiring
section and get some good help / information from Franklin2.

Best of luck,

Mister_King
Thank You Mister King!
 
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Old Mar 10, 2015 | 01:45 PM
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TWO different T/S switches used in 1969:

C9TZ-13341-C .. T/S Switch / Obsolete

1965/66 F100/250 2WD - 1966 F100 4WD - 1967/68 F100/350 - 1969 F100/350 before serial number G30,001.
-----------------------------------------------------------------------------------------------------------------------------
D0TZ-13341-B .. T/S Switch / Obsolete

1969 F100/350 from serial number G30,001 - 1970/72 F100/350.
--------------------------------------------------------------------------
1967/69: 4 way emergency flasher switch located inside the glove box.

1970/72: 4 way emergency flasher switch located on the dash to the right of the steering column.
 
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Old Mar 10, 2015 | 02:11 PM
  #9  
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Serial numbers

Originally Posted by NumberDummy
TWO different T/S switches used in 1969:

C9TZ-13341-C .. T/S Switch / Obsolete

1965/66 F100/250 2WD - 1966 F100 4WD - 1967/68 F100/350 - 1969 F100/350 before serial number G30,001.
-----------------------------------------------------------------------------------------------------------------------------
D0TZ-13341-B .. T/S Switch / Obsolete

1969 F100/350 from serial number G30,001 - 1970/72 F100/350.
--------------------------------------------------------------------------
1967/69: 4 way emergency flasher switch located inside the glove box.

1970/72: 4 way emergency flasher switch located on the dash to the right of the steering column.

Thank You! The T/S switch I purchased was for the serial # 30,001 and above . My problem is I am not sure what serial number my truck is. The door jams have been striped and painted.. So is there another way to find out?
 
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Old Mar 10, 2015 | 02:36 PM
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Originally Posted by Farminwithmyford
Thank You! The T/S switch I purchased was for the serial # G30,001 and above . My problem is I am not sure what serial number my truck is.

The door jams have been striped and painted.. So is there another way to find out?
Serial number is the last 6 digits of the VIN / Truck registered by its VIN which will be listed on the registration/title.

VIN on Warranty Plate is known as the Warranty Number. FoMoCo said it's not for title or registration purposes...as it's too EZ to change.

Warranty Plate located on the left door face below the latch. People replaced damaged left doors with used doors.

99.9% of the time, they failed to install the original Warranty Plates on the replaced doors.
 
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Old Mar 10, 2015 | 02:45 PM
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Thank You

Originally Posted by NumberDummy
Serial number is the last 6 digits of the VIN / Truck registered by its VIN which will be listed on the registration/title.

VIN on Warranty Plate is known as the Warranty Number. FoMoCo said it's not for title or registration purposes...as it's too EZ to change.

Warranty Plate located on the left door face below the latch. People replaced damaged left doors with used doors.

99.9% of the time, they failed to install the original Warranty Plates on the replaced doors.
Thank You so much!
 
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Old Mar 10, 2015 | 04:36 PM
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Check the fuse? If that's OK the separate wires of the T/S switch you replaced is prolly the problem. Did you match up wire colors? Double check yourself there.


 
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Old Mar 10, 2015 | 06:51 PM
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I think the vin is also stamped on the right side top of the frame in the engine compartment
 
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