A loose earth/ground wire can prevent any of the electrical components from functioning.A loose earth/ground wire can prevent any of the electrical components from functioning.
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Check for loose wire or loose ground
If you mean your gauges are going crazy, this is likely the result of a loose or bad ground wire. It could be the ground wire for your battery or any ground wire that is tied into the gauges.
The main cause for a meter to read negative voltage across a DC motor is a loose ground wire. The ground wire can be loose or may need to be cleaned.
A loose or bad ground wire can do that.
Loose ground wire or bad ground.
A bad ground wire will cause your instrument panel gauges to bounce up and down. The ground wire can be loose or it can be corroded.
HEY MAN I DONT KNOW IF IT IS THE SITUATION....BUT MY 96 AND MY BOYS 92 BOTH HAD THIS PROBLEM.....MINE HAD A LOOSE GROUND WIRE ON MY ALT. AND HIS 92 HAD A LOOSE GROUND WIRE ON HIS BATTERY WHERE IT CONNECTS TO THE FRAME...SO CHECK IT OUT
The most common cause of noise in your AM radio is a loose or corroded ground wire. Clean and tighten the ground wire and the AM noise should disappear.
The bolts just come loose sometimes. It could also be a frayed ground wire.
Loose, defective, or corroded cables, loose ground wire, starter, or starter solenoid.