Notices

Amp guage hook up??

Thread Tools
 
Search this Thread
 
Old Jan 5, 2003 | 09:44 AM
  #1  
390man's Avatar
390man
Thread Starter
|
Freshman User
20 Year Member
Joined: Dec 2002
Posts: 25
Likes: 0
From: ILLinois
Amp guage hook up??

Hi,I have a 1975 F-250 4X4 Hi-Boy w/390 motor,can some one tell me the proper wiring from my alternator to amp guage? Thank you for all your help 390man
 
Reply
Old Jan 5, 2003 | 11:39 AM
  #2  
Mike W's Avatar
Mike W
Post Fiend
Joined: Apr 2002
Posts: 7,157
Likes: 1
From: Central Kali
Amp guage hook up??

I would use a voltmeter instead for two reasons. It gives a better indication of what your charging system is doing, the ammeter will normally hardly move. It is a lot easier to hook up.

To hookup the ammeter you have to separate the alternator output terminal and connect one side of the ammeter to the alternator output and the main supply wire for the truck. The other terminal of the ammeter goes to the start solinoid + term.

Now when you start the engine, the ammeter will show a slight charge current into the battery. If the alternator fails, the ammeter will read negative as the battery is supplying current to run the truck. Also you need to run heavy wires into the cab which should be fused. A voltmeter is just a lot easier, Just one wire to a point that is hot with the ignition on.
 
Reply
Old Jan 5, 2003 | 01:46 PM
  #3  
kc73's Avatar
kc73
Senior User
Joined: Aug 2002
Posts: 112
Likes: 0
From: south dakota
Post Amp guage hook up??

 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Nick-1973-ford
1973 - 1979 F-100 & Larger F-Series Trucks
7
Apr 10, 2019 11:51 PM
bronco-man
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
7
Feb 24, 2008 05:56 PM
jvivek
Aerostar
8
Feb 15, 2006 08:54 AM
dtony
1967 - 1972 F-100 & Larger F-Series Trucks
4
Jan 23, 2006 09:43 AM
390hiboy
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
4
Jul 26, 2001 10:32 PM




All times are GMT -5. The time now is 11:57 PM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE