Buick Regal 2018-2026 Service Manual / Transmission / Transmission Cooling System
Buick Regal: Transmission Cooling System
SPECIFICATIONS
FASTENER SPECIFICATIONS
Single Use Non-Threaded Fasteners/Components
NOTE: All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal.
Application
Transmission Fluid Cooler Line Seal
Transmission Fluid Cooler Pipe Fitting Retainer
Reusable Threaded Fastener Tightening Specifications
NOTE: All fasteners listed in this table can be reused after removal.
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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
SEE MORE:
DTC B3055
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
Special Tools and Equipment
SPECIAL TOOLS
DT-26941
J-26941
Remover
DT-37228
J-37228
Seal Cutter
DT-43911
J-43911
Selector Shaft Seal
Remover
DT-44215
J-44215
Rear Seal Installer
DT-44809
J-44809
Output Shaft Seal
Installer
DT-45124
J-45124
Removal Bridge
DT-45124-9
J-45124-9
Puller Leg
DT-47865
Bearing Remover
DT-48056
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