1997 F350 headlight switch problem - Ford Powerstroke Diesel Forum
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  #1  
Old 01-06-2013, 03:47 PM
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1997 F350 headlight switch problem

Got this truck and when you pull out the headlight switch all the way the headlights come on, but there is no dash lights or taillights. If you fuss with switch it all works like it should. But to find that sweet spot it is a pain and if you hit a bump it goes out. Put a new one in today and it does the same thing. Put one in from my F150 and it does the same thing. Both work fine in the F150. So what could it be? Thanks guys.

Here's a pic

1997 F350 headlight switch problem-imageuploadedbyag-free1357519649.996414.jpg


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  #2  
Old 01-07-2013, 05:13 AM
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Anyone have an idea?
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Old 01-07-2013, 10:20 AM
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It's not the switch. That's just coincidence when it works in between positions; it's the headlight power feed feeding the parking light circuit (i.e. "sneak"). Did you check the parking light fuse?
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Old 01-07-2013, 02:23 PM
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I looked over a few fuses, but don't think I did that. You can hear a resistor click when it does work all the lights. I went to Ford today and they said they have never heard of it. Lemme go check parking light fuse. Is it under dash or hood?
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Old 01-07-2013, 02:31 PM
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Fixed. Thanks!


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Old 01-07-2013, 02:42 PM
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And it was.....
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Old 01-07-2013, 03:22 PM
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The fuse you said. Position 4. I looked yesterday at position 10 cause it said instrument lights. But position 4 also says instrument lights, but I missed that yesterday.


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Old 01-08-2013, 06:43 AM
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Yeah, I think 4 is for the whole parking light circuit, including the dash lights, and 10 is for just the dash lights, after it splits off and goes to the dimmer. So when the parking lights go too, it's the upstream fuse.
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