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There usually isn't one. The vehicle becomes the ground, and since the alternator is physically attached to the engine, the case of the alternator becomes the ground. Note that the battery is also connected to the vehicle chassis, usually at 2 or more points, and that the engine usually has a grounding strap to some solid point on the chassis.
What else can I help you with?
Can a bad alternator burn the wire between the battery and alternator?
Yes, if it shorts to ground internally.
How do you wire alternator to a battery to test alternator?
run it and then disconnect the negative wire from the battery if alternator dies its bad.
Why would the alternator in your 1994 Mitsubishi galant not be charging the battery when it is not defective?
usualy if the alternator is not defective then its the battery. you should start by cleaning the battery post. then you could check the terminal wire that runs from the battery post to the alternator. if thats not it you should check the ground on the alternator.
The Alternator in a 91 Dodge Dynasty will not charge the battery. The alternator is good as is the battery. Disconnected the ground wire and car auto. dies. What could possible be wrong?
voltage regulator.
Will a bad ground wire ruin an alternator?
a bad ground wire can ruin an alternator by not completing the circuit
How do you replace battery cable?
You have to disconnect the ground wire from the block. You have to disconnect the positive wire from the starter and the alternator and the powerline going to the fuse box. and connect the new ground then the positive
What would cause a good battery to not stay charged on a buick park avenue 86?
ALTERNATOR OR THE BATTERY GROUND WIRE Have you tried checking your Alternator? I know this is why mine on my vehicle would not stay charged..
How do you convert a 1965 mustang generator to an alternator?
Not much to it, get the one wire alternator, and brackets from a 302 and mount it up, belts will be the same as the 302, wire goes to the battery. # wire is a bit different, red lug goes to battery, botton 2 wire plug should be exciter and is ignition power and a ground.
Where is the alternator fuse?
ALternator fuses, if equipped may be on the battery post, in a fuse box, or in the wire going from the battery to the alternator.
Why does battery go dead when hooked up but alternator is good in geo metro?
check your battery ground and your alternator ground
What wire hooks from battery to alternator?
the positive wire that recharges the battery after being drained from the starter
How do you replace alternator on2001 merc mountaineer?
Disconnect the battery ground, disconnect the wire from the back of the alternator which goes to the battery positive, unbolt the alternator from the bracket, detach any remaining wiring from the alternator, the replacement procedure is the same in reverse. It's a pretty simple task.
