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Old 06-13-2008, 07:58 AM
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Aftermarket Ammeter

I have an aftermarket ammeter that I'm wanting to install in my 1994 Dodge Dakota. The instruction guide is clear as mud when it comes to the Dodge.
I have tried one guide found on the net , which is basic , hook a wire to the alternator , connect it to the gauge thus marked and then run a wire to the positive side of the battery, from the battery side of the meter.Nothing happened.I have asked on two Dodge forums which wires to use from the battery and so far only one person has answered and is basically running over the same thing I've already done.
Can anyone help. I don't want to blow up the meter nor melt any wires.

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Old 06-13-2008, 09:57 AM
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I don't know why you want an amp meter,they are old news. The best thing to do is use a volt meter. It is simple to hook up and is what all new cars are coming with.Is there any special reason you want an amp meter?
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Old 06-13-2008, 10:02 AM
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I wish I could help, but I have never installed one of those.

The volt meter is really easy to do.

I put autometer gauges in mine last year.
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Old 06-13-2008, 10:12 AM
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Take a look at this thread as well as do a search in the Electrical section here. You really do not want an ammeter with an alternator !!!

Ammeter Install

Dave W
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Old 06-13-2008, 10:17 AM
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I have attached a drawing below. Left click on it for a larger view.

As has already been stated, a Voltmeter is really the way to go today.

If you do install the amp gauge be sure to use a minimum of 10 gauge wire and keep in mind that one side will be HOT all the time when the battery is connected.
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Last edited by Frisco; 06-13-2008 at 10:22 AM.
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Old 06-13-2008, 11:10 AM
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Aftermarket Ammeter

Thank you all for the help.

I have a voltmeter in the truck.

yes I have a reason for wanting an amp gauge.

Frisco , thanks for the drawing, it verifies my thoughts on how to connect it.

You guys are great, I don't care what they say about you!

Oh and by the way , the cars that you guys have are fantastic, hope they run as good as they look.

Thanks again!

Last edited by 1grasshopper; 06-13-2008 at 11:16 AM.
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Old 06-15-2008, 06:06 PM
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The wiring for your amp gauge sounds like it might work like the OEM wiring on my '75 GMC truck. The GMC gauge connects into two points in the wiring - one close to the battery and one closer to the fuse box. The amp gauge makes an analog comparison (not sure of the electrical design) of the two voltages and turns it into an amp reading.

This GM design does not run the full amperage through the gauge, so it does not have the same fire hazard as one that has to take the full amperage. However, mine also does not work, and I'm not sure what has failed. I ended up switching to a separate voltage gauge.

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