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11-18-2020, 11:36 PM | #1 |
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Join Date: Sep 2020
Location: San Angelo Texas
Posts: 56
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Headlight problem on 40 Ford
The headlights on my 40 Ford will only work on hi-beam. They won’t work on lo-beam. All of the rest of the lights work perfectly.
This is a 12 volt system. Can anyone point me in the right direction to repair this. Thank you |
11-18-2020, 11:42 PM | #2 | |
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Join Date: Sep 2011
Location: Christchurch New Zealand
Posts: 1,611
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Re: Headlight problem on 40 Ford
Quote:
If just one side would be bulb provided you are still on standard set up as opposed to sealed beam units. Best of luck. Phil NZ |
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11-18-2020, 11:45 PM | #3 |
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Location: Wichita KS
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Re: Headlight problem on 40 Ford
You could start by checking for voltage at the headlight low beam terminal. And then at the dimmer switch itself. The same power wire feeds both the high & low beam, the dimmer switch selects between the two. If you don't have a voltmeter, switch the high and low beam wires at the headlights and see if the problem reverses.
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11-18-2020, 11:53 PM | #4 |
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Join Date: Sep 2020
Location: San Angelo Texas
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Re: Headlight problem on 40 Ford
Thank you. I’ll check power at dimmer switch and switch wires in the morning.
They are standard sealed beam headlights. The lo and hi beams were working fine last night. |
11-19-2020, 01:00 AM | #5 |
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Location: Wichita KS
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Re: Headlight problem on 40 Ford
Could just be a bad connection or corroded switch.
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11-19-2020, 01:59 AM | #6 |
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Re: Headlight problem on 40 Ford
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11-19-2020, 10:38 AM | #7 |
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Join Date: Jun 2014
Location: Williamsburg, VA
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Re: Headlight problem on 40 Ford
Check the wiring harness connectors on top of the frame rail, just aft of the radiator on the driver side.
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11-19-2020, 10:43 AM | #8 |
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Join Date: Oct 2011
Location: Shelton, WA
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Re: Headlight problem on 40 Ford
And, if you are using the original switch, it might just be worn out but probably the dimmer.
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11-19-2020, 11:33 AM | #9 |
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Join Date: Sep 2020
Location: San Angelo Texas
Posts: 56
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Re: Headlight problem on 40 Ford
Thanks so much. I'll check all of the above as soon as I get time today.
I have to use ramps to get under my car as it's got a 4" drop axle. Hopefully time this evening.....I'll report back. |
11-19-2020, 08:25 PM | #10 |
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Location: Long Island, NY
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Re: Headlight problem on 40 Ford
Try due NORTH
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11-19-2020, 09:55 PM | #11 |
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Join Date: Sep 2020
Location: San Angelo Texas
Posts: 56
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Re: Headlight problem on 40 Ford
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11-20-2020, 08:40 PM | #12 |
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Join Date: Sep 2020
Location: San Angelo Texas
Posts: 56
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Re: Headlight problem on 40 Ford
Found it......loose wire on the dimmer switch.
Thanks for your help. and Joe Shell......good luck with your riddle?.....weird |
11-20-2020, 11:11 PM | #13 |
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Join Date: Nov 2012
Location: Wichita KS
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Re: Headlight problem on 40 Ford
Way to go!
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11-20-2020, 11:29 PM | #14 |
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Join Date: Sep 2020
Location: San Angelo Texas
Posts: 56
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Re: Headlight problem on 40 Ford
Thanks J. It was the lo-beam wire that screws into the dimmer switch. Screw was still hanging in the wire end.....lucky!
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11-22-2020, 10:15 AM | #15 |
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Join Date: Apr 2013
Location: Long Island, NY
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Re: Headlight problem on 40 Ford
Norris,
Glad you solved your problem. You did ask if anyone could point you in the right DIRECTION. Horace would have told you to “go west” Have a HAPPY THANKSGIVING Joe |
11-22-2020, 03:46 PM | #16 |
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Location: San Angelo Texas
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Re: Headlight problem on 40 Ford
You too Mr Shell!
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