Questions tagged [ground]

The part of an electrical circuit after the load device and continuing back to the voltage source.

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How common is it to have poor ground when jump starting a vehicle?

Today I investigated whether a li-ion jump starter could work for my car. It's a hybrid vehicle and the battery is in the trunk (which can't be opened if the battery is flat). Under the hood, there's ...
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What does this ground cable connect to?

so i was filming for youtube and came across this random ground wire that wasn't bolted to anything, it's on a '99 jeep wrangler TJ, any of y'all know where this goes?
WhiplashGamz's user avatar
2 votes
2 answers
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To ground or not To ground

Sure most cars have neg earth chassis return .Boats have single point ground so there are no hull currents to cause electrolytic corrosion .My question is about busses .They have been known to have ...
Autistic's user avatar
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2007 jeep liberty 3.7 only start I completely remove "any" sparkplug from cylinder then ground,

Only starts take out any one plug then ground to alternator starts right up, thought had to be bad ground so grounded from battery to engine block still won't start with all six plugs in Jeep Liberty ...
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146 views

My Alternator Case to Battery Negative is reading 12 vdc and same for the Case to Positive side

just had tranny replaced last week. The alternator that was on the car had been replaced in May of this year. I drove car for at least 1000 miles since the tranny was replaced. But, last night the ...
JPNissanAltima2016's user avatar
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When adding third party accessories, does it matter if I ground them at the same point as existing wiring?

I'm looking at add a hard-wired dashcam to my vehicle. I have the fuse tap ready (And appropriately guarded for now) and am looking at the ground for the hard wire kit. I got in near the fusebox and ...
Sidney's user avatar
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Is the 3 pin plug provided in a cigarette lighter port inverter (12v-220) actually grounded?

I have been planning to buy a 12v car inverter, that plugs into the cigarette lighter port and puts out 220v with max 200watts, for sometime now. The one that I ordered is of brand portronics and has ...
Dhruba Banerjee's user avatar
3 votes
1 answer
520 views

Correct gauge of wire for earth/ground

One of my ground cables, which links the battery to the gearbox has snapped. I used a caliper to measure the diameter of the wire, and it is approximately 6mm in diameter (so i calculated this to be ...
james246's user avatar
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2 answers
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Kia Rio brake light weirdness

My wife has a 2007 Kia Rio. She started it the other day and when she put her foot on the brake a dashboard indicator about a burnt out light came on. We looked at it together and found that with the ...
Matt's user avatar
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Electrical wires worked with a melting connector but when I cut them and tested by twisting them together it wont work

So, like the title said I had a 3 wire connector plug which I assumed had wires grounding in it which was causing it to overheat and melt, when i clipped the wires and twisted them together to see if ...
Brandon Luckman's user avatar
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Why does a backup camera work without the ground wire connected and is it needed?

I am in the process of installing a backup camera that has the same wiring as shown in this picture: The cable in the middle with a red and black wire coming off of it connects to one of the two ...
JoshMc's user avatar
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steering treehouse/stem, forks replaced now it wont start

Are there safety features such as the kickstand being down, clutch in or a loose ground wire that effects the start button directly? If so, what grounds do I check on my 2001 Suzuki Katana 600f?
Tiffany E Lyday's user avatar
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1 answer
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2014 Jeep Cherokee Wiring harness ground to a 12v power outlet

can i ground tekonsha 118605 trailer harness to a 12-volt power outlet ground located in the rear cargo area on my Jeep Cherokee?i have the power wire ran to the battery and everything done except the ...
Bain's user avatar
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Can I ground an amplifier on a bolt that touches the chassis or does my ground need to touch the chassis?

I currently have my amplifier grounded like this but I need to turn up the gain to the max to hear my subwoofer. Is this a good ground or does the ground connector ring actually need to touch the ...
Niel's user avatar
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Open ground wire causing weird behaviour of combination meter

Few months ago, my combination meter suddenly start flicking then all the gauges stop working. After diagnosing it myself with multimeter and with the help of wiring diagram obtained from google ...
John Law's user avatar
2 votes
1 answer
188 views

Meaning of green ground symbols in Body and Equipment Mounting Manual ground point documentation

The Ford Transit Body and Equipment Mounting Manual documents ground points in a set of diagrams and tables starting in section 4.20.1 on page 211. While most of the ground points illustrated in the ...
intuited's user avatar
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Battery Drain Immediatly

So, I am currently putting in a finalized sound system in a 1998 C5 corvette. I finally put the whole thing together( 4 speakers, hooked to an Alpine amp with RCAs. And a amp included sub box, the ...
Nick Ted's user avatar
2 votes
4 answers
9k views

Why are multiple grounds in the engine bay/engine important?

On certain cars (perhaps even most? all?), such as the old Toyota MR2 turbo, there are multiple ground points. Some of them are described with pictures here: http://www.mr2oc.com/59-general-mk2-faq-...
AlphaCentauri's user avatar
2 votes
2 answers
4k views

Truck Cap Lighting and Wiring - Can I splice two ground wires together, connect to one ground?

I have a new truck bed cap. I need to wire the cap's dome light and third brake light. As such, the cap has four wires (supply to dome, ground from dome, supply to brake light, ground from brake light)...
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Why are ground straps bare, and can I shield them?

So I have to replace a ground strap on my wife's car, which is a bare, braided copper wire that's tinned and solder blocked in the ends. Because this particular ground strap is on the bottom of the ...
FireSBurnsmuP's user avatar
3 votes
0 answers
114 views

Pickup runs only with the ground wire removed

My 2006 Ford F150 would not start and the lights flashed in the dash when I tried to start it. I removed the starter which is only 4 months old, it bench tested as perfect. I removed the battery ...
Ted's user avatar
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2 answers
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Ground cable from battery to motor can not find stud to attach cable. Where is it located?

350 Oldsmobile Cutlass. There is terminal ring that should attach to stub on motor. When I looked at battery / motor cable was dangling loose cable length about 2 feet.
James's user avatar
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Intermittant crank, intermittant start / Acura TSX 2004 6spd manual

OK, I've been fiddling with this for 2 hours and I'm fed up, but I need your help and I'm willing to mail you a beer or something if you can help me diagnose that stupid issue! I've read other similar ...
that-ben's user avatar
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1 answer
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Trying to find the point of failure in car's electrical system

The car won't start unless I use a emergency power supply and even then it takes holding the key turned for ignition for a few seconds for the engine to eventually start. The car's instrument panel ...
sbadams's user avatar
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1 answer
2k views

motor barely turns over and melts ground wire,

Motor barely turns over and ground wire starts smoking and melts wire coating. already moved ground to different areas and this does not help.
user29914's user avatar
1 vote
1 answer
13k views

Why do we place a negative cable to the ground instead of the negative terminal while jump starting a dead car battery? [duplicate]

I was wondering what the arguments would be besides the chance of explosions, or mishaps when a potential spark could ignite volatile gases. I already know of that potential liability so I don't need ...
Narcotixs's user avatar
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4 votes
3 answers
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Why no common ground for two 12v deep cycle marine batteries connected in series?

My trolling motor instructions advise that a common ground MUST be established for connecting the trolling motor either to one 12 volt marine battery or to two 12 volt deep cycle marine batteries ...
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4 votes
4 answers
4k views

Why do I connect the positive and the negative to the battery on a boat?

My trolling motor for my boat has a black and a red connection. The red goes to the positive on the 12 volt battery. The black goes to the negative on the 12 volt battery. Could I connect the black ...
USER_8675309's user avatar
5 votes
1 answer
257 views

What would be the need for more than 2 ground wires in any car, truck, suv, van?

With the understanding that most all vehicles have at least 2 grounds wires, what items would add to the list of minimum requirements for a safe grounding system. An 'item' is defined as an object ...
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3 votes
1 answer
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Dodge w150 318 727 torqueflite; need help with wiring

We just got done putting motor back in but a ground wire from the head to the fire wall keeps getting hot and smoking (steel braided wire) we've been all over this thing and cant find out our problem
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