Amp Ground Problems
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=35657
Printed Date: May 19, 2025 at 6:45 PM
Topic: Amp Ground Problems
Posted By: jaredjones18
Subject: Amp Ground Problems
Date Posted: July 15, 2004 at 6:07 PM
Im having some trouble getting my amp to ground right now for some weird reason, u can move the ground to make it ground and it does for a few seconds then looses ground ive tried everything and dif places its just wont stay grounded..anyone help me please..Thank!
Replies:
Posted By: stevdart
Date Posted: July 15, 2004 at 7:02 PM
Are you measuring continuity from the ground terminal to the chassis to find this conclusion that it is losing its ground? If so, what are the readings, good ground, then bad ground? And, have you been running this amp for some time and the problem just all of the sudden developed? Is the power wire continuously connected to the amp and battery during the bad grounding?
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: archemedes
Date Posted: July 15, 2004 at 9:45 PM
are you grounding to body? is the screw loose?
Posted By: djMINIoompa
Date Posted: July 15, 2004 at 9:56 PM
is the paint scraped off where the wire will be touching?
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It is better to remain queit and have others think u are dumb, then to open your mouth and remove all doubt.
Posted By: jaredjones18
Date Posted: July 16, 2004 at 1:46 PM
what happened was i accidently unplugged one of subs wires and i tried to put the ground on better and now it wont ground it ground for a few seconds and looses power and ive moved it to dif places it was orig on a screw in the trunk and worked fine but now it will go off and on, im confused...thanks guys.....more suggestions welcomed!
Posted By: Jay T
Date Posted: July 16, 2004 at 3:01 PM
Its hard to tell what exactly you mean. But for a good ground just drill a hole somewhere inconspicuous in the chassis (not overhead cross members), scrap or sand all the paint off in that spot and get to good bare metal for best contact, put a ring terminal on the end of your ground wire, then use a metal screw with a washer and put it in the hole you drilled. Voila. You might have a problem at the amp where it accepts the other side of the ground wire? Check your power wire for good clean connections at the battery as well.
Posted By: stevdart
Date Posted: July 16, 2004 at 4:53 PM
jaredjones18 wrote:
.....more suggestions welcomed!
What you got were questions...that need answers if anyone has a shot at helping you out with this problem. Would you read our posts and answer them, please? Be sure to disconnect power to the amp. Use an ohm meter and test continuity of the ground, once you have it connected. It stays good? Grounding is not the issue. It is bad? Use another ground wire, and try again. Have a spade terminal crimped securely to the ground cable. But by all means do not allow the power to be connected to the amp when there is no ground. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
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