Buick Regal Owners & Service Manuals

Buick Regal: Diagnostic Information and Procedures

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 Transmission Overheats

TRANSMISSION FLUID COOLER FLOW TEST AND FLUSHING (6T50) GM studies indicate that plugged or restricted transmission oil coolers and pipes cause insufficient transmission lubrication and elevated ope

 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 tra

 Repair Instructions

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 Symptoms - Power Seats

NOTE: The following steps must be completed before using the symptom tables. 1. Perform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data lin

 DTC B3415 or B3425

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

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