Gauge Electrical Short
Thread Starter
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Freshman User
Joined: Jan 2005
Posts: 48
Likes: 0
From: Brentwood, TN
Gauge Electrical Short
Did the 12 volt light attached to neg. battery post and the other to the disconnected ground cable. The light is bright white so I got a pretty good short that showed up out of nowhere. Pulled fuses and determined the short is in the guages. Pull the fuse or disconnect the power to the guages and light goes completely out.
Also, if I just disconnect the Fuel sending unit the light dims to the point of almost being off. This would the resistance from the volt meter that should be there?
Before I go out and plop down $50+ on a instrument cluster voltage regulator and pray it is the answer, is there something else I need to check? Can the fuel sending unit be shorted? How do you test this? Any tricks I can use?etc. etc.
Thanks in advance for any suggestions.
Also, if I just disconnect the Fuel sending unit the light dims to the point of almost being off. This would the resistance from the volt meter that should be there?
Before I go out and plop down $50+ on a instrument cluster voltage regulator and pray it is the answer, is there something else I need to check? Can the fuel sending unit be shorted? How do you test this? Any tricks I can use?etc. etc.
Thanks in advance for any suggestions.
Thread Starter
|
Freshman User
Joined: Jan 2005
Posts: 48
Likes: 0
From: Brentwood, TN
You're correct. I keep forgetting to list the truck and the mods (1950 F-1 mostly stock with restored guages, negative ground, altenator, etc.).
I'll do better.
Not you should have to go look at it but all of this information is in my profile along with pics. Check out my pics. It's a beautiful truck. Every prettier when it is running.
I'll do better.
Not you should have to go look at it but all of this information is in my profile along with pics. Check out my pics. It's a beautiful truck. Every prettier when it is running.
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Joined: Jan 2001
Posts: 57,025
Likes: 2,756
From: Virginia
The guages are fed by the ignition switch. When the ignition switch is off, there should be no power at the gauges. So I would check the wiring/re-wiring of your power distribution. Some things are powered all the time, most things are powered through the ignition switch.
Originally, your truck was very simple, and the things I can think of that would be powered all the time are the headlights, marker lights, the brake light switch, the starter switch, some power to the generator/alternator, and a hot all the time to power the ignition switch itself. Dome lights too, though I don't know if they had them back then. There may have something I missed, but everything else should be cut off by the ignition switch.
Originally, your truck was very simple, and the things I can think of that would be powered all the time are the headlights, marker lights, the brake light switch, the starter switch, some power to the generator/alternator, and a hot all the time to power the ignition switch itself. Dome lights too, though I don't know if they had them back then. There may have something I missed, but everything else should be cut off by the ignition switch.
