68 Ammeter
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Elder User
Joined: Sep 2007
Posts: 521
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From: new mexico
68 Ammeter
My 51 yr old plus ammeter is starting to bug me a bit. All other wiring and charging system, fuel injection under hood is all new. Can I unplug it and then just put the wires together so it is “ hard wired” ?
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
C5TZ-10850-B .. Ammeter Gauge / Obsolete
1965/66 F100/250 Standard Cabs & F350/1000 // 1965/69 N/NT500/1000 // 1966/77 Bronco // 1967/69 F800/1000.
NOS PARTS SOURCE in Olathe KS has 1 = 913-220-5746.
NOS PARTS LTD in Waxahachie TX has 2 = 972-937-2201.
CARPENTER NOS OBSOLETE PARTS in Concord NC has 18 = 800-476-9653.
1965/66 F100/250 Standard Cabs & F350/1000 // 1965/69 N/NT500/1000 // 1966/77 Bronco // 1967/69 F800/1000.
NOS PARTS SOURCE in Olathe KS has 1 = 913-220-5746.
NOS PARTS LTD in Waxahachie TX has 2 = 972-937-2201.
CARPENTER NOS OBSOLETE PARTS in Concord NC has 18 = 800-476-9653.
Lead Driver
Joined: Jul 2017
Posts: 9,606
Likes: 1,175
From: San Jose, CA
When you disconnect the plug, make sure the battery is disconnected first, as it's a single loop of wire between the alternator's BAT post and the battery via the starter relay.
Then inspect the connection closely for rust or deteriorating and clean, or fix if needed. If it does not go back together super tight, take it back apart and see if there is a way to tweak/crimp it a bit to make a tighter connection.
This is the wire that powers literally everything in the truck, and charges the battery. Has to be clean and tight for it all to work right.
Speaking of clean and tight... The two rectangular firewall connectors are major problem areas of Broncos. If nothing else then, while you have the battery disconnected, pull them apart and check them for loose, bent or corroded connections. The large Black charge wire running through the ammeter loop also runs through those connectors. In one and out the other if I'm not mistaken.
Might even do that first, just to see if it has any effect on how the ammeter works.
By the way, what is it doing that bugs you? Oscillating back and forth? Just bouncing around with the vehicle like the spring dampener has broken? Something else?
Good luck.
Paul
Then inspect the connection closely for rust or deteriorating and clean, or fix if needed. If it does not go back together super tight, take it back apart and see if there is a way to tweak/crimp it a bit to make a tighter connection.
This is the wire that powers literally everything in the truck, and charges the battery. Has to be clean and tight for it all to work right.
Speaking of clean and tight... The two rectangular firewall connectors are major problem areas of Broncos. If nothing else then, while you have the battery disconnected, pull them apart and check them for loose, bent or corroded connections. The large Black charge wire running through the ammeter loop also runs through those connectors. In one and out the other if I'm not mistaken.
Might even do that first, just to see if it has any effect on how the ammeter works.
By the way, what is it doing that bugs you? Oscillating back and forth? Just bouncing around with the vehicle like the spring dampener has broken? Something else?
Good luck.
Paul
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Elder User
Joined: Sep 2007
Posts: 521
Likes: 0
From: new mexico
Everything works ok and charges well. It does bounce back and forth quite a bit. According to my volt meter and also the handheld controller for my EFI the voltage is doing well. Maybe best to leave it alone. Truck stays out and has been out of the weather and lives in the southwest dry area.
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