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Ground sparking Is it normal to have ground wire spaking slightly

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If the ground on the amplifier is sparking, it is either -
arcing across to the power or remote terminal via a stray wire strand, or loose inside the terminal.

If it is sparking at the chassis ground (car) - the screw is loose.

It is not normal to spark, and needs attention before the spark turns into failure of the amplifier.

Thank you for using FiXya - A FiXYa rating is appreciated!

Posted on Jan 22, 2009


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Posted on Jan 02, 2017


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1 Answer

No spark from coil to distrubuter

Disconnect the ignition coil output wire at the distributor cap.
Connect a spark plug to the end of the ignition coil output wire which you just disconnected.
Connect a ground wire to the threaded portion of the spark plug.
Disconnect the ignition coil ground wire from the negative terminal on the coil (Green Wire).
Connect one end of a ground wire to the ignition coil negative terminal.
Turn the ignition switch to the ON position.
Tap the other end of the ignition coil ground wire jumper on an good grounding point (for example the battery negative terminal) and look for sparks at the spark plug that correspond to the frequency of your tapping of the ground wire.
If you have a good spark at the spark plug, the ignition coil is good.
If you don't get a good spark, check for approximately 12 VDC from the coil positive terminal (black wire) to ground with the ignition switch in the ON position. You should also get approximately 12 VDC from the coil negative terminal (Green wire) to ground
Ignition Coil Resistance Check

In addition to the test above, you may elect to perform an ignition coil resistance check as confirmation of the coil's condition.

Check the ignition coil primary coil resistance by connecting an ohmmeter between the positive (Black wire) and negative (Green wire) terminals on the coil. The resistance should be 0.4 to 0.6 ohms.
Check the ignition coil secondary coil resistance by connecting an ohmmeter between the coil output terminal and the ignition coil negative terminal. The resistance should be 5000 to 7200 ohms.

You may have a bad coil or bad ground or wire connection

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1 Answer

How do i check the coil or internal electrics

And ignition coil has two sets of wires one to a primary winding and the other is for the secondary winding the secondary winding has the large rubber cord that goes to the spark plug and the other and goes to ground the other winding the primary winding has one and it goes to ground and the other end that goes to your magneto source if you take a ohmmeter you should be able reader crossed the primary input winding wire to ground It Should Not read zero nor infinity The same is true of the secondary winding across the spark plug wire and ground if this Brpward where is a carbon filament where you may get a very high reading but not infinity

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Grounds are negative

Body is ground side of electrical system

Only the wires in a vehicle are positive, in reference
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Current is opposite
Electrons flow neg to pos

Your Spark Plugs (Spark- jumps) from the ground strap to the
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What your saying is your putting battery voltage directly to or at
a switch terminal & the window motor is good,but not the switching
or wiring side of circuit

Would be nice to have the factory wiring book ,wouldn't it

I never walk to any vehicle without one, if I have a volt meter in
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1 Answer

Artic cat 2003 mountian cat 800

Assuming all wire harnesses are stock and loomed from the factory it sounds like a frayed power wire making contact to your frame somewhere. Chasing wiring is never fun. Start from the headlamp bucket and work through them looking for fray or broken wire loom. Could be a lead touching the frame or ground wire connection somewhere in its path. Sometimes its as easy as within the headlight bucket itself. Goodluck

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1 Answer

2005 grand am wont start

see this steps and fix it. God bless you
When the engine cranks normally but won't start, you need to check ignition, fuel and compression. Ignition is easy enough to check with a spark tester or by positioning a plug wire near a good ground. No spark? The most likely causes would be a failed ignition module, distributor pickup or cranshaft position sensor CKP

A tool such as an Ignition System Simulator can speed the diagnosis by quickly telling you if the ignition module and coil are capable of producing a spark with a simulated timing input signal. If the simulated signal generates a spark, the problem is a bad distributor pickup or crankshaft position sensor. No spark would point to a bad module or coil. Measuring ignition coil primary and secondary resistance can rule out that component as the culprit.
Module problems as well as pickup problems are often caused by loose, broken or corroded wiring terminals and connectors. Older GM HEI ignition modules are notorious for this. If you are working on a distributorless ignition system with a Hall effect crankshaft position sensor, check the sensor's reference voltage (VRef) and ground. The sensor must have 5 volts or it will remain permanently off and not generate a crank signal (which should set a fault code). Measure VRef between the sensor power supply wire and ground (use the engine block for a ground, not the sensor ground circuit wire). Don't see 5 volts? Then check the sensor wiring harness for loose or corroded connectors. A poor ground connection will have the same effect on the sensor operation as a bad VRef supply. Measure the voltage drop between the sensor ground wire and the engine block. More than a 0.1 voltage drop indicates a bad ground connection. Check the sensor mounting and wiring harness.
If a Hall effect crank sensor has power and ground, the next thing to check would be its output. With nothing in the sensor window, the sensor should be "on" and read 5 volts (VRef). Measure the sensor D.C. output voltage between the sensor signal output wire and ground (use the engine block again, not the ground wire). When the engine is cranked, the sensor output should drop to zero every time the shutter blade, notch, magnetic button or gear tooth passes through the sensor. No change in voltage would indicate a bad sensor that needs to be replaced.
If the primary side of the ignition system seems to be producing a trigger signal for the coil but the voltage is not reaching the plugs, a visual inspection of the coil tower, distributor cap, rotor and plug wires should be made to identify any defects that might be preventing the spark from reaching its intended destination.


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1 Answer

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Burners sometimes will not light

You can check the ignitors/wiring by switching

the output wires at the spark module. If the

front ones work & back ones stop working, change

out the module. If no change take a look at the

ignitor(remove screw on bottom to remove

ignitor), ignitor wire & ground wire by removing

the burners.

Possible Causes Of Continuous Sparking:
Defective spark wires.
Continuous high heat can cause spark wires to

degrade. Use volt/ohm meter to determine

of spark wires. Look for obvious cuts/ abrasions

or pinch points. A defective wire can allow
spark voltage to transfer through insulation to

ground prior to reaching spark electrode. Under
normal circumstances all igniters fi re together

and if the burner in question has found an

ground path the spark will go there. It will

not, however, in most cases have found a

ground path such as what the fl ame would

provide under normal circumstances. This will

the spark module to re-ignite.

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