70 f100 turn signal issues

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outcrydrummer
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70 f100 turn signal issues

Post by outcrydrummer »

Put a new flasher in and still don't have signals. Emergency signals work fine just the blinkers are all dead. Any pointers on where to start looking? Thanks
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sargentrs
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Re: 70 f100 turn signal issues

Post by sargentrs »

Aren't there two flashers? One under the dash for emergency and one behind the instrument cluster? Could also be the turn signal switch. http://www.fordification.com/tech/image ... l_7072.jpg
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1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
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outcrydrummer
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Re: 70 f100 turn signal issues

Post by outcrydrummer »

Yeah there are two flashers. Both are new. I guess I need to trouble shoot the switch
mbetter95
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Re: 70 f100 turn signal issues

Post by mbetter95 »

Also, it looks as if I tap it right out of the light switch that I am getting it before it's fused. Is that the case? If so I probably ought to add a 2A fuse in my line to the gauge light, correct?
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tbone6
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Re: 70 f100 turn signal issues

Post by tbone6 »

mbetter95 wrote:Also, it looks as if I tap it right out of the light switch that I am getting it before it's fused. Is that the case? If so I probably ought to add a 2A fuse in my line to the gauge light, correct?
Sorry, but I am a little confused. Are you talking about tapping the light switch to use for the turn signals or the gauge lights, or both? :? :hmm:

Yes, it will be unfused if you use the wire at the ign. switch.
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tbone6
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Re: 70 f100 turn signal issues

Post by tbone6 »

Here is the simplified version of the turn circuit power.
wiring-diagram_70ext-lights01.jpg
I would start at the fuse, then work my way to the flasher, then to the switch.
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