Buick Regal: Diagnostic Information and Procedures

 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

 DTC P2725, P2729, or P2730

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure: Refer to Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis: Refer to Strategy Based Diagnosis An overview of each diagnostic category can be found here: R