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04-06-2021, 08:50 PM
(This post was last modified: 04-06-2021, 08:50 PM by 87TurboBird2.3.)
Regarding the negative battery cable off my 87 TC. Can someone tell me what the round thing is were the 3 cables intersect? Is it a fuseable link or just a junction to connect all the wires together? The wires are corroded and I wanted to replace them with new wires and I was planning just to splice them together, but I thought I'd better ask before I eliminated that round thing where the wires come together.
Also, what's the plug on the end of the smaller cable for? It plugs into the wiring harness, but I have no idea what it goes to.
I tried to upload a couple pictures, but it wouldn't let me because the files are too big. I have no idea how to shrink the file (picture) size.
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Jeff K
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Joined:
Apr 2001
Milwaukee, WI
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It has been a number of years since I have dealt with that cable, but I am 99.7% sure that cable runs directly from the EEC IV computer ground pin (pin 40 I think) to the battery negative terminal. The EEC electronics needs an electrically "clean" (as in no electrical noise) ground to function properly. Why it splits into 2 separate cables is a mystery to me.
Jeff Korn
88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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(04-06-2021, 10:48 PM)Jeff K Wrote: It has been a number of years since I have dealt with that cable, but I am 99.7% sure that cable runs directly from the EEC IV computer ground pin (pin 40 I think) to the battery negative terminal. The EEC electronics needs an electrically "clean" (as in no electrical noise) ground to function properly. Why it splits into 2 separate cables is a mystery to me. So should I be ok just to splice all these wires together when I make new cables? Or is this junction point on the factory cables a inline fuse or something like that? I don't need it do I?
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Jeff K
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Joined:
Apr 2001
Milwaukee, WI
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Yes, you can splice them together at the battery. The 2 smaller wires that come out of that cylindrical junction are just connected directly to the thicker cable anyway.
Jeff Korn
88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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(04-07-2021, 06:10 PM)Jeff K Wrote: Yes, you can splice them together at the battery. The 2 smaller wires that come out of that cylindrical junction are just connected directly to the thicker cable anyway. Thanks Jeff. Appreciate it.
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