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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Light switch

Old May 15, 2021 | 09:33 PM
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Light switch

my light switch is really hot to the touch. The back/side, not the actual pull. Is this normal? If not, is the switch going out?

 
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Old May 15, 2021 | 10:10 PM
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did you have your headlights on? the power for the headlights on these trucks runs through the headlight switch and is known to melt the switch or connector
 
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Old May 15, 2021 | 11:36 PM
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No. Lights were not on.
 
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Old May 16, 2021 | 07:55 AM
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After further research, I ordered a updated light harness from Amazon. My reading indicates that the harness will have the lights no longer pull power through the switch, but through relays instead.
 
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Old May 16, 2021 | 10:56 AM
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Originally Posted by Toork
After further research, I ordered a updated light harness from Amazon. My reading indicates that the harness will have the lights no longer pull power through the switch, but through relays instead.
Good plan. I don't know what Ford was thinking running the headlight current through the switch. Wanted to save a couple bucks I guess.
 
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Old Jun 19, 2021 | 08:09 AM
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Originally Posted by x-ring
Good plan. I don't know what Ford was thinking running the headlight current through the switch. Wanted to save a couple bucks I guess.
According to this guy, it seems like it is very common, not only in Fords.

I am looking into doing this upgrade, since reading this article.
http://www.danielsternlighting.com/t...ys/relays.html
 
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Old Jun 19, 2021 | 03:02 PM
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Originally Posted by sswari
According to this guy, it seems like it is very common, not only in Fords.
True that, I think all the manufacturers did it up until very recently.
 
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Old Jun 19, 2021 | 04:41 PM
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Just a FYI, the harness I ordered on Amazon came with faulty one-off relays. I contacted customer service with no response. I started a return, but they only take returns if it’s returned in the original packaging….which I trashed. 😡.

I got a different dash switch from the JY that is in good shape. I’ll run that until I make time to modify the aftermarket harness.

Don’t order it from Amazon!
 
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Old Jun 19, 2021 | 05:57 PM
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The broncograveyard usually has them, also
 
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Old Jun 19, 2021 | 09:10 PM
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The bronco graveyard harness is the same as the putco harness off of amazon and uses the same cheap relays. You can get spares from amazon or JBG as well
 
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