K 1500 Yukon Denali AWD V8-6.0L VIN U (2002)
Drive Belt: Testing and Inspection
Drive Belt Chirping
Drive Belt Chirping Diagnosis
Drive Belt Chirping Diagnosis
Diagnostic Aids
The chirping noise may be intermittent due to moisture on the drive belt(s) or the accessory drive pulley(s). In order to duplicate the customers
concern, it may be necessary to spray a small amount of water onto the drive belt(s). If spraying water onto the drive belt(s) duplicates the symptom,
cleaning the accessory drive pulley(s) may be the most probable solution.
A loose or improper installation of a body or suspension component, or other item(s) on the vehicle may also cause the chirping noise.
Test Description
The number(s) below refer to the step(s) in the diagnostic table.
2. The chirping noise may not be engine related. This step is to verify that the engine is making the noise. It the engine is not making the noise do not
proceed any further in this table.
3. The noise may be an internal engine noise. Remove the drive belt(s) and operate the engine for a few seconds, this will verify if the chirping noise
