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Ford Truck Club Forum > FORD F-100 | F-150 SERIES > 1948-1983 Ford F100

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Old January 31st, 2018, 10:21 PM
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Terrance Terrance is offline

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Default Turn signal issues 79 F100

When I start the truck all 4 turn signals blinking on the outside. When I turn on the headlights or just the park lights, they stop. Rear passenger side does not blink when I use right turn signal. Driver's side front & rear solid when i use left turn signal. Also solid on driver's side when i apply brakes. Any ideas???
Old February 1st, 2018, 01:10 PM
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glc glc is online now

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You should have 2 flashers - one for the turn signals and one for the 4 ways. Pull the 4 way flasher, what happens now? (Make sure that the button for the 4 ways isn't stuck down)

Ultimately, it sounds like you have a wiring and/or grounding issue. Good luck, electrical issues like this on a 40 year old truck are no fun to chase.

2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS

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