Electrical Problems
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Junior User
Joined: Mar 2001
Posts: 79
Likes: 0
From: Granger, IA
Electrical Problems
After replacing several sockets and soldering in many feet of new wire, my 76 F-150 finally started to operate normally at the tailights except the back-up lights won't work. Not more than two weeks later and things have gone haywire again. Now the driver's side blinker will flash between the back-up light and the rgular flasher or not work at all. The brake light fails to come on in that side too. The passenger side (so far the best behaved) has begun to go out in the blinker and brake light functions. One other problem is the tailights don't work now either. While I'm at it, the most baffling thing to me is the last two older Ford trucks I've owned both had radios that turned on whenever the headlight switch was in the "on" position. I know this was not my fault as I'm a very adept at wiring stereo systems. Sorry for being so long winded, but these electrical woes are very baffling to me, not too mention annoying. Please help!!
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Electrical Problems
Matt, Didn't Sparkey address this issue a while back, seems to me that he did.
You have feedback, because two wires are connecting. You may have to go to the turnsignal switch to complete the troubleshoot.
John
jowilker
[link:www.ford-trucks.net/users/jowilker|Club FTE since 01 01] My FTE Page
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66F100s Rule
In the cool still quiet of night you can hear chevies rusting away.
You have feedback, because two wires are connecting. You may have to go to the turnsignal switch to complete the troubleshoot.
John
jowilker
[link:www.ford-trucks.net/users/jowilker|Club FTE since 01 01] My FTE Page
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NC Truck Owners] NC Ford Truck owners group
66F100s Rule
In the cool still quiet of night you can hear chevies rusting away.
Senior User
Joined: May 2001
Posts: 194
Likes: 0
Electrical Problems
Man I am having similar problems. Check the transducer that actuates the brake lights. Its on the pedal about 3/4 of the way up. Mine would stick closed, keeping the lights from coming back on. Other than that, nothing else has worked for me.
Good Luck
Aaron
Good Luck
Aaron
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
Electrical Problems
[font color=red size=2]I had the same trouble with a radio once. Ford has a dash light wire that lights up the stock radio when the lights are on. I mistakenly hooked the new radio's power to that dash light wire, so the radio was only powered when the lights were on. I just had to find the correct power wire and swap them. Maybe yours is the same problem...;-)
Just a thought...
Marty
"Cleverly Disguised as a Responsible Adult"[/font]
Just a thought...
Marty
"Cleverly Disguised as a Responsible Adult"[/font]
Senior User
Joined: Dec 2000
Posts: 435
Likes: 0
From: Nebraska Farm
Electrical Problems
Don't forget that all the brake and turn signals run through the steering column. A piece of dirt or worn contacts can cause a lot of problems under the steering wheel.
Dave,
79 F-150 4x4, 390 w/C6, Edelbrock carb, 33X12.50 never will be finished.
Dave,
79 F-150 4x4, 390 w/C6, Edelbrock carb, 33X12.50 never will be finished.
Moderator
Joined: Jan 2001
Posts: 56,950
Likes: 2,718
From: Virginia
Electrical Problems
He says his taillights don't work either and that is a simple circuit from the light switch to the rear. My guess on this one would be a ground. If you have a meter, see if you have voltage at the rear on the tail light wires. Put the black lead of the meter on a ground location on the bed. If you have nothing put the black lead on a frame ground. If you get tail light voltage with the frame ground, run a ground wire from the bed to the frame, tying the two together.
