F100 Wiring Harness

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jgf100
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F100 Wiring Harness

Postby jgf100 » Wed Nov 15, 2017 2:24 pm

Hi,
I am replacing the wiring harness on my '70 F100 with a new harness from PainlessPerformance. There are two originally wired parts that have no connection in the new harness or are even mentioned in the manual. The first is under that dash and it looks like a fuse box but has vacuum lines attached to it. The second looks to be connected to the transmission speedometer cable wire in the engine bay. Can anyone help me identify what they are and how I could wire them in to the new Harness.
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sargentrs
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Re: F100 Wiring Harness

Postby sargentrs » Thu Nov 16, 2017 5:31 am

The bottom pic is a distributor modulator viewtopic.php?t=13334 and http://www.fordification.com/tech/image ... ator02.jpg Not sure what it's purpose is other than some kind of emissions control function.
Randy
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: viewtopic.php?f=22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1964 Ford Fairlane 500. 289/Cruise-O-Matic, A/C, P/S.

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sargentrs
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Re: F100 Wiring Harness

Postby sargentrs » Thu Nov 16, 2017 5:45 am

The 1st photo appears to be some kind of cruise control option! Couldn't find anything for a bump but found this related to Mustangs. https://www.google.com/search?q=1970+f1 ... KiAluGlG1M:
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Randy
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: viewtopic.php?f=22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1964 Ford Fairlane 500. 289/Cruise-O-Matic, A/C, P/S.

jgf100
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Re: F100 Wiring Harness

Postby jgf100 » Thu Nov 16, 2017 11:26 am

sargentrs wrote:The 1st photo appears to be some kind of cruise control option! Couldn't find anything for a bump but found this related to Mustangs. https://www.google.com/search?q=1970+f1 ... KiAluGlG1M:


Thanks for the info. It does look like a cruise control option I also found on an earlier model Bronco! At any rate, I'll finish installing the new harness and see what issues if any come up.


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