Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
If the rotor fails any of the above checks, replace it.
Stator Test - CS-144 Generator
Testing The Starter For Grounds
Test the stator with a self-powered test lamp or an ohmmeter. If the ohmmeter reads low, or if the lamp lights when connected from any stator lead to
bare metal on the stator frame, the stator is grounded.
An ohmmeter cannot be used to test the delta stator for shorts or opens. Noticeable discoloration on the assembly usually indicates a problem in the
stator windings.
Diagnosis By Symptom
Noise from a generator may be caused by a loose drive pulley, loose mounting bolts, worn or dirty bearings, worn stator, or worn rectifier bridge. If the
pulley and mounting bolts are snug and the noise continues, replace the generator.
Do not disassemble the generator. Separating the end frames will damage the slip ring end bearing. This generator is serviceable by complete
replacement only.
