Hi beams flashing
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Hi beams flashing
I have a 97 f250 powerstroke and I got a plow on it and the high beams started flashing I flipped the switch back and it stopped so got out and played with the plow plug while the high beams on and it didn't help so I unplugged it and the truck lights were doing it I have no idea where to start checking
Elder User
Joined: Jul 2010
Posts: 543
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From: Gilmer, TX.
On that model, pull the headlight switch, and look for signs of heat.
Back then, all the juice for the lights ran through the switch, and it was too much for it. Install relays under the hood, so that the dash switch only trips the relays, and the lights are powered from the batteries.
Also, if you want better light output, you can rewire the high beam switch so that the low beams stay on when you activate the high beams. It makes a noticeable difference.
Also, if you're plowing snow, that means salt. Check your grounds. ALL OF THEM.
Hope this helps.
Back then, all the juice for the lights ran through the switch, and it was too much for it. Install relays under the hood, so that the dash switch only trips the relays, and the lights are powered from the batteries.
Also, if you want better light output, you can rewire the high beam switch so that the low beams stay on when you activate the high beams. It makes a noticeable difference.
Also, if you're plowing snow, that means salt. Check your grounds. ALL OF THEM.
Hope this helps.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
Hello Nate4494 and welcome to FTE.
Your thread should be posted in the 1987 - 1996 F150 & Larger F-Series Trucks forum (including 1997 Heavy Duty). I'll move it there for you.
Your thread should be posted in the 1987 - 1996 F150 & Larger F-Series Trucks forum (including 1997 Heavy Duty). I'll move it there for you.
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