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#1 |
Junior Member
![]() Join Date: Jul 2005
Location: Alabama
Posts: 83
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What are these plugs/wires for?
I can't seem to find these in the wiring diagram...
The one on the passenger side looks like it broke at the end to wherever it's supposed to go and when I pulled it apart it looked like it had a glass fuse that rusted and caused it to break. There is an identical plug/wire on the driver side. 1970 C10 but it's not original and had lots of DIY mods over the years before we got it and a mad scientist did all the "wiring".
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#2 |
Senior Member
![]() Join Date: Feb 2022
Location: Ca
Posts: 496
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Re: What are these plugs/wires for?
Battery meter
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#3 |
Junior Member
![]() Join Date: Jul 2005
Location: Alabama
Posts: 83
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Re: What are these plugs/wires for?
This is going to the voltage gauge? Why the two plugs/fuses on both sides of the truck?
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#4 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,469
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Re: What are these plugs/wires for?
Both are used for the amp meter . Takes the mini glass fuse
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#5 |
Senior Member
![]() Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 613
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Re: What are these plugs/wires for?
It's for an original Ammeter not Voltage meter. The Ammeter senses the difference in voltage on both ends of the circuit. If you're truck still has an Ammeter then you'll need both fuses. If your truck has been retrofitted with a Voltage meter then this circuit should no longer be hooked up or needed.
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67 C10 283 T5 swapped longbed fleetside = wife's daily driver 67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck 67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD 72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck Can you tell we are fans of longbed fleetsides & 67s Chris |
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#6 |
Registered User
Join Date: Apr 2010
Location: So Cal
Posts: 1,437
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Re: What are these plugs/wires for?
Both use a 4 Amp fuse for the Battery Gauge (Ammeter). They both go directly to the gauge and nowhere else.
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'67 GMC 2500, 292, 4spd, AC |
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#7 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,216
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Re: What are these plugs/wires for?
If it is corroded or you can't get the broken fuse out, you can replace it with a universal inline fuse holder & a 4 amp fuse.
George |
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#8 |
Senior Member
![]() Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,504
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Re: What are these plugs/wires for?
I’d soak it for a few days in WD-40, then grab the remaining metal with smallest needle nose pliers ya got in your toolbox, don’t destroy the rubber boot
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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#9 |
Senior Member
![]() Join Date: Jun 2022
Location: San Ramon,CA
Posts: 501
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Re: What are these plugs/wires for?
In case it's not blatantly obvious, these are the short type. P/n is SFE-4
I couldn't find them locally and had to order them off the River. Near as I can tell, that janky looking plastic tape on the bundle is original
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1970 C10 Custom longbed 350/350 Last edited by Rust_never_sleeps; 08-14-2024 at 12:57 PM. |
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#10 |
Junior Member
![]() Join Date: Jul 2005
Location: Alabama
Posts: 83
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Re: What are these plugs/wires for?
Thank you everyone, it does have the stock ammeter in it but never worked...now I know why.
But we do have an aftermarket set of gauges for oil press, voltage, and water temp so we're just going with that and deleting everything else... Thank you.
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#11 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,106
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Re: What are these plugs/wires for?
Inside that janky bundle of tape lies the main splice of the harness.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#12 | |
Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 565
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Re: What are these plugs/wires for?
Quote:
I have both the plugs and fuses and I had no idea what they did so I left the wire connected forever even though I installed a voltmeter long ago. Good job you guys! ![]() |
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