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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

No Rear Lights

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Old Oct 30, 2010 | 05:46 PM
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IrishChef's Avatar
IrishChef
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No Rear Lights

Hi all....
'89 F150 5.0 .....rear blinkers and stop lights work, as do flashers. No "running" lights. Would this be a headlight switch problem? I took a good look under the truck at what I thought might be the most likely places where a break would be, but all wiring seems fine. Thanks in adavance.
 
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Old Oct 30, 2010 | 05:50 PM
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do they work if you pull it back 1 position instead of 2? I/E only your marker lights on?

Thats where i'd start testing is at that headlight switch.
 
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Old Oct 30, 2010 | 05:56 PM
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Do you have dashboard lights?
If not check the topmost fuse in the box. I think it's #4
Sometimes the fusebox gets hot and the connections go bad on the back side.
 
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Old Oct 30, 2010 | 06:02 PM
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No, they don't work in the first pull-out position, and no other lights are affected. Thanks for the quick responses!
 
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Old Oct 30, 2010 | 06:11 PM
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Try playing with the switch between positions.
You may find a "sweet spot" that will verify it's the switch before you spend $60 on a non-returnable electrical item you didn't need.


Ask me why I know...
 
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Old Oct 30, 2010 | 06:32 PM
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LOL...I know the feeling...yeah, I'll try it.
 
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Old Oct 30, 2010 | 06:52 PM
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Sometimes the plug for the switch melts as well, causing all kinds of problems.
This should be correct for your 1989 application.

Amazon.com: Pico 5311PT 1987-1993 Ford "F" Trucks Dash Headlight Switch Nine Lead Wiring Pigtail: Automotive
 
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