Buick Regal: Diagnostic Information and Procedures

 Drive Belt Chirping, Squeal, and Whine Diagnosis

Diagnostic Aids A chirping or squeal noise may be intermittent due to moisture on the drive belts or the pulleys. It may be necessary to spray a small amount of water on the drive belts in order to duplicate the customers concern. If spraying water on the drive belt duplicates the symptom, c

 DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Passenger Seat)

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors D