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It is the wire that supplies the initial field current to the alternator from the battey. Once the alternator is rotating the field current will be provided by the diodes from the current produced by the alternator. excitor wire is usually wired through the charging indicator light.
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What makes alternator fuse in 1982 caprice keep blowing disconnected alternator and fuse stills blow?
Im not sure if your talking Alternator output wire fuseable link or regulator exciter wire, i would assume your talking the exciter wire, it may have a short and is grounding out on the engine or frame somewhere
Where does the Exiter wire hook on a 1989 gm 350?
alternator
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.
What is the purpose of an exciter diode in an alternator?
There are three exciter diodes on all alternators. They are connected to the stator windings. The purpose of the diodes is twofold. While the engine is running, it turns off the alternator indicator light and supplies power to the voltage regulator.
When a car battery and alternator are good what can cause them to fail?
check for a fuse in the charging system check if your alternator "exciter" wire voltage is good (this should be the positive wire INSIDE the pigtail plug ) if those check out fine you will need to check each wiring system in the vehicle for a "dead" short (positive wire touching the ground) remember on a vehicle the entire metal body of the vehicle is ground
How do you convert 4 wire gm alternator to 2 wire?
I would connect the L lead to the dash light for alternator fault and from there to the ignition switch and the S lead directly to the alternator output connection. If there is no light, use a 35-300 Ohm resistor between the L lead and the ignition switch.
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.
How do you install 1 wire alternator 1969 Mustang 351W?
If you have a new alternator its as simple as run the one wire to the solenoid. If you are converting the alternator to a one wire, you will need an external regulator. If you have a new alternator its as simple as run the one wire to the solenoid. If you are converting the alternator to a one wire, you will need an external regulator.
Will a bad ground wire ruin an alternator?
a bad ground wire can ruin an alternator by not completing the circuit
What is the difference between a 1 wire and 2 wire alternator?
2 wire has a live wire to energise the field where as the single wire alternator self energises and does not need the powered feed.
Why wood my red wire going from alternator plug to batterry?
This wire allows the alternator to keep the battery charged.
Alternator not charging on a 1999 Camaro Previous owner put a jumper wire from the MAP sensor to provide current to the alternator when jumper is removed alternator stops charging?
It depends on where the wire is being connected on the alternator. It could be the alternator or it could be a damaged wire or connector. It's something that you will need to track down.
