Confirm that you have a good constant-on power wire. You should find several going up behind the dashboard and into the steering column. You can connect it to a regular switched power source, but the light will stay on whenever the car's running, and won't brighten or dim when you adjust the dashboard lights.
Connect wire from ignition switch to the positive I terminal on the back of gauge. Never mess with a yellow wire with a bold black stripe around it. Tips The voltmeter connection can be made at the battery positive and negative if desired. These lights are often stand-alone, requiring their own ground and power supply. Connect one end to terminal post on temperature sender, male virgo and opposite end to sender S terminal on back of gauge.
It Still Runs
Look for a grounded accessory wire. See illustration at right. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us. The large, gauge yellow wire is the starter and will not have any power except when the starter is engaged. Installing an aftermarket gauge is fairly simple as such things go, but you will have to spend some time looking for the right wires to run it.
Tighten terminal nuts to compress star lockwashers into terminal lugs. Reconnect negative - battery cable. Electricity is a valubale commodity, especially in modern automobiles. Attach the voltmeter negative to the ground wire with a wire tap, or to the metal chassis using a screw and drill.
With pressure gauges it is beneficial to add a T-fitting to install your new gauge and to keep the warning light operational. Use either butt connectors or the commonly supplied wire taps to connect the voltmeter wires to the wiring harness. Connect one end to terminal post on pressure sender, and opposite end to sender S terminal on back of gauge.
Connect one end to terminal post on fuel level sender and the opposite end to the sender S terminal spade on back of gauge. Wiring Example wiring of a typical Ammeter installation. Attach the wire coming out of the connector to the positive terminal of the voltmeter and the end going to the steering column to the negative side.
Take careful note of which is which. May use weld on bung on steel pans not included. To assure proper functioning of this instrument, please read instructions thoroughly before installing.
Use gauge wire for the hookup if the wire was not provided with the voltmeter kit. Ironically, real voltmeters are one of those things that seem to have disappeared even as electrical devices have exponentially proliferated. Proper ground connections should be made by running ground wire from bolt in cover to chassis, being sure to leave enough slack in wire for suspension travel. Route gage wire through firewall.
How to Hook Up a Marine Voltmeter
- These gauges can be mounted in-dash or in Auto Meter mounting solutions panels, cups, pods, etc.
- Hook them up backward, and the voltmeter will work backwards, indicating a discharge when in fact it is charging.
- Braided stainless steel lines are sold separately by Auto Meter, and can be used to accomplish this.
- If this product is to be installed on a vehicle requiring metric fittings, please contact you local Auto Meter dealer to purchase metric adapters.
Find the right gauge for your needs
Have your maximum alternator output tested. It is perfectly safe to test these circuits. You'll find it behind the interior light dimmer switch. Connect wire from ignition switch to ignition I terminal on back of gauge. Indicator should read negative -.
Sender should be grounded automatically when installed. Sender should automatically be grounded when installed. Metric Adapters If this product is to be installed on a vehicle requiring metric fittings, please contact you local Auto Meter dealer to purchase metric adapters. Mount the voltmeter with the screws provided.
Be sure that body or mounting flange of sender is grounded to suitable chassis ground. Verify that none of the ammeter connections are to ground. Be prepared to shut engine off immediately if hot spots are detected. Gauge connects to fuel sender on fuel tank. After starting engine, check wiring connections for hot spots.
Connect ground wire from ground post on gauge to suitable chassis ground. Install temperature sender. If a new hole is drilled in the firewall a grommet is recommended.
How to Wire Voltmeter Gauges on a Car
Install sender into pressure port of appropriate type. Leaving engine off, turn on lights. Example wiring of a typical Ammeter installation. Butt connectors are stronger and more reliable, but wire taps are faster and don't require cutting the original wire.
Aftermarket voltmeters can come with a number of options, not least of which being a back-light for night running. Any of these will work, however every manufacturer has its own colors for the different circuits. This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, dating a in efforts to ensure our readers only receive the best information.
Be sure not to drill all the way through. Mechanics call it the yellow jacket wire because, dating sites for because it's part of the air bag system. Purchase of additional fittings such as metric or hose adapters may be required.
CAUTION FOR ALL GAUGE INSTALLATION
- The smart thing with these is to ground them to the chassis, and tap into the dashboard light power wire.
- Fasten with brackets supplied as shown.
- Close Have a minute to review your recent purchases?