Buick Regal 2018-2026 Service Manual / Transmission / Transmission Cooling System / Diagnostic Information and Procedures
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
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Storing the Tire Sealant and
Compressor Kit (With
Subwoofer)
To access the tire sealant and
compressor kit:
1. Open the liftgate.
2. Lift the cover.
3. Remove the compressor (1)
and the tire sealant
canister (2).
To store the tire sealant and
compressor kit, reverse the steps.
Storing the Tire Sealant and
Compressor Kit (Without
Subwoofer)
To access the t
DTC C056E (Power Steering Control Module)
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 Based
Diagnosis
An overview of each diagnostic category can be found here:Diagnostic
Procedure
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