Buick Regal 2018-2025 Service Manual / General Information / Waterleaks
Buick Regal: Waterleaks
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Diagnostic Information and Procedures
WATERLEAK TEST PREPARATION
GM vehicles are designed to operate under normal environmental
conditions.
The design criteria for sealing materials and components takes into
consideration the seali
Repair Instructions
BODY WATERLEAK REPAIR
WARNING: If the vehicle interior is exposed to moisture and becomes
soaked up to
the level of the sensing and diagnostic module (SDM), the SDM and SDM
harness connector must be
SEE MORE:
Engine Front Cover Installation
Special Tools
EN-45059 Angle Meter
EN-50820 Front Crankshaft Seal Installer
For equivalent regional tools, refer to Special Tools.
1.
Using EN-50820 installer, install the front crankshaft seal (1) into the
engine front cover.
2.
Ensure proper use of room temperature vulcanizing (RTV) sealan
DTC B018A, B048C, B048F, or B1395
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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