Buick Regal: Diagnostic Information and Procedures

 DTC B1019

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 Descriptor DT

 Transmission Fluid Cooler Flow Test and Flushing (AF50-8)

Special Tools DT - 45096 TransFlow Cooler Flush Machine DT - 45096 - 30 TransFlow Adapter For equivalent regional tools, refer to Special Tools. GM studies indicate that plugged or restricted transmission oil coolers and pipes cause insufficient transmission lubrication and elevated operating