Sierra Denali V8-6.0L VIN N (2005)
Drive Belt Whine
Drive Belt Whine Diagnosis
Diagnostic Aids
The drive belt(s) will not cause the whine.
If the whine is intermittent, verify that it is not the accessory drive component(s) by varying their loads, making sure they are operating to their
maximum capacity. An overcharged Air Conditioning (A/C) system, a power steering system restriction or the incorrect fluid, or a failing generator
are suggested items to inspect.
Test Description
