Durango 4WD V8-5.9L VIN Z (1998)
Alternator: Description and Operation
SYSTEM 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 and ground terminals.
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.
