Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 12-03-2014, 10:02 AM   #1
gmcdiecast
Junior Member
 
Join Date: Jun 2014
Posts: 13
Default Lights not working in all positions.

I will try to be brief. I have a '29 coupe I got in May. The wiring harness was not installed but was with the car. I hooked the horn up first and it worked fine. I did replace all the connections on the harness with quick connections. I finally got around to hooking up the lights. Tried all the positions of the switch and no luck. Had a few guys in my car club mess with it with no luck either. Fast forward a few months. Horn was dragging so I took it apart to oil it. Put it back together and no sound. I found one of the wires came off. Fixed that and got the horn working. Just for grins I turned the light switch and they cam on but only on high beam. Tail light works now too. Any ideas why only high beam works.
gmcdiecast is offline   Reply With Quote
Old 12-03-2014, 10:47 AM   #2
eagle
Senior Member
 
eagle's Avatar
 
Join Date: Aug 2011
Location: Eagle Bend, MN
Posts: 1,405
Default Re: Lights not working in all positions.

Use a wiring diagram and a voltmeter and start troubleshooting it methodically. If you don't feel you're up to the task find someone who is. Any reputable mechanics shop will be able find your problem if you supply them with a schematic. They are available here, use the search function. There is no way anyone here is going to be able to give you a reasonably accurate answer with the info you gave us. Just guesses.
eagle is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 12-03-2014, 11:00 AM   #3
Dbbc
Senior Member
 
Dbbc's Avatar
 
Join Date: Apr 2014
Location: Honolulu
Posts: 106
Default Re: Lights not working in all positions.

Aloha,
Make sure that the light switch at the bottom of the steering column is clean. If oil leaked from the steering wheel into the light switch it might mess up with your electrical connections.
Dbbc is offline   Reply With Quote
Old 12-03-2014, 01:02 PM   #4
31Tudor
Senior Member
 
31Tudor's Avatar
 
Join Date: May 2010
Location: North Carolina
Posts: 398
Default Re: Lights not working in all positions.

If you are using the original plug set up in the headlight connection, and older repro headlight sockets, the electrical tabs can actually touch each other and both elements will be on. As Eagle suggested your best bet is to be sure both elements work in the headlight, and then just start your way through. Unplug the wires from the headlight, turn the switch to low beam, with a test light determine if you have power to one of the wires going to the headlight, if so, check the other side, same color of wire. If no power then there is some problem with the power coming through the switch. Then go to high beam and test the same. Then I hook up just one light and see if one light works as it should. If not, back to trouble shooting. When I get one light working properly, then I go over and start hooking up the other light.
31Tudor is offline   Reply With Quote
Old 12-03-2014, 11:09 PM   #5
Lee Mitch
Senior Member
 
Join Date: Feb 2011
Location: Sandy, OR.
Posts: 133
Default Re: Lights not working in all positions.

Mine did the same thing. Turned out the switch (at the bottom of the column) was not on correctly. Clean it and keep working with it until it connects properly. Could be a lot of things, but this is a quick check. Good luck
Lee Mitch is offline   Reply With Quote
Old 12-04-2014, 09:16 AM   #6
whirnot
Senior Member
 
whirnot's Avatar
 
Join Date: Mar 2013
Location: Bend Or.
Posts: 782
Default Re: Lights not working in all positions.

Quote:
Originally Posted by dbbc View Post
aloha,
make sure that the light switch at the bottom of the steering column is clean. If oil leaked from the steering wheel into the light switch it might mess up with your electrical connections.
x2
__________________
Bill Worden

1929 Roadster
1929 Briggs Town Sedan
1930 Closed Cab pickup
1951 Ford F1

High Desert Model A's
whirnot is offline   Reply With Quote
Old 12-04-2014, 02:54 PM   #7
Big hammer
Senior Member
 
Join Date: Jun 2014
Location: Land of Lincoln
Posts: 1,821
Default Re: Lights not working in all positions.

Check and see if low beam element in bulb burned out ! Easy to over
look simple stuff :-)
Big hammer is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 09:59 AM.