Running 4g power wire and 0g ground wire heat amp up? - Chevy Impala SS Forum
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post #1 of 30 (permalink) Old 09-01-2013, 07:28 PM Thread Starter
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Running 4g power wire and 0g ground wire heat amp up?

So i reran my system today. I upgrade my ground wire to 0 gauge from 4 gauge and mounted it to the rear seat belt bolt. Now all of a sudden my Mono amp is getting horribly hot an shut off mins after song plays. I never had this problem until I hooked the 0 gauge ground up!
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post #2 of 30 (permalink) Old 09-01-2013, 09:30 PM
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did you run everything exactly the same? what brand wire did you use?




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post #3 of 30 (permalink) Old 09-01-2013, 09:39 PM Thread Starter
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did you run everything exactly the same? what brand wire did you use?
everthing is ran the same besides the 0 gauge ground wire, Location of the ground, and i use some better speaker wire to run from my amp to subs. Thats it
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post #4 of 30 (permalink) Old 09-01-2013, 10:04 PM
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You need to change the ground location if it is different than original. You also need to make sure you have a good clean paint free ground.

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post #5 of 30 (permalink) Old 09-01-2013, 10:32 PM Thread Starter
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So should I go back to the 4 gauge ground wire since I'm running 4 gauge power wire? I read on the audio forums that the power and ground should match.

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post #6 of 30 (permalink) Old 09-01-2013, 11:01 PM
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Grounding woes

So,what's grounding your body? If it's the little wire going to the fender from the battery,you're asking for trouble big-time. Much of the wiring harness depends on a grounded body,and now you're pumping power into it. You could catch something on fire doing stuff like this. Ground the body to the motor pronto.

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post #7 of 30 (permalink) Old 09-02-2013, 07:21 AM
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Quote:
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So should I go back to the 4 gauge ground wire since I'm running 4 gauge power wire? I read on the audio forums that the power and ground should match.

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As 1slow96 stated make sure your body has a good ground as well, but place for high power amplifier grounds are on the frame itself.

Now as far as putting 4G back on for ground. NO. What you read on audio forums is correct but misconstrued. IF you have a 4 G power you need to have a 4G or LARGER ground wire to match.

Where was it grounded before that it wasn't causing the amp to heat up?

My suggestion, for 0G ground wire, drill hole in body in a place you can run wire direct to the frame, burnish or sand frame to clean shiny metal, attach ground lead.

Pretty good video here to give you the basics.

Definitely make sure that your body ground located on the right fender next to the battery is good an tight and not corroded, it is good to check that as well.

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post #8 of 30 (permalink) Old 09-02-2013, 11:20 AM
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The only correct way to run a ground for something pulling that much juice is back to the battery.
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post #9 of 30 (permalink) Old 09-02-2013, 01:13 PM
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Grounding woes

Absolutely wrong. The only reason to run ground cable the entire length of the car is failure to ground the body,frame,and motor to each other properly.

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post #10 of 30 (permalink) Old 09-02-2013, 03:34 PM Thread Starter
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Meaning run another ground from the battery to the body? I read you should do the Big 3. Also can a too long of a ground cause the amps to heat up? My 0 gauge ground is about 2.5 feet but my amp is foot from the grounding souce.

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