Buick Regal: Diagnostic Information and Procedures
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DTC C028F
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.
Diag
DTC C0293
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis: Strate
DTC C056E
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure:Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy
SEE MORE:
Symptoms - Antilock Brake System
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
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 operating temperatures which can lead to
premature transmission
failure. Many repeat repair cases coul
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