Durango 2WD V8-4.7L VIN N (2001)
Alternator: Description and Operation
The generator is belt-driven by the engine using a serpentine type drive belt. It is serviced only as a complete assembly. If the generator fails for any
reason, the entire assembly must be replaced.
As the energized rotor begins to rotate within the generator, the spinning magnetic field induces a current into the windings of the stator coil. Once the
generator begins producing sufficient current, it also provides the current needed to energize the rotor.
The Y type stator winding connections deliver the induced AC current to 3 positive and 3 negative diodes for rectification. From the diodes, rectified DC
current is delivered to the vehicle electrical system through the generator battery terminal.
Although the generators appear the same externally, different generators with different output ratings are used on this vehicle. Be certain that the
replacement generator has the same output rating and part number as the original unit. Refer to Generator Ratings in the Specifications for amperage
ratings and part numbers.
Noise emitting from the generator may be caused by: worn, loose or defective bearings; a loose or defective drive pulley; incorrect, worn, damaged or
misadjusted fan drive belt; loose mounting bolts; a misaligned drive pulley or a defective stator or diode.
