Buick Regal 2018-2026 Service Manual / HVAC & Restraints / Heating, Ventilation, and Air Conditioning
Buick Regal: Heating, Ventilation, and Air Conditioning
- Specifications, Visual Identification
- Diagnostic Information and Procedures
- Repair Instructions
- Special Tools and Equipment
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Specifications, Visual Identification
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.
Applicat
Diagnostic Information and Procedures
LEAK TESTING
Special Tools
GE-41447 A/C Tracer Dye-Box of 24
GE-42220 Universal 12V Leak Detection Lamp
GE-43872 Fluorescent Dye Cleaner
GE-50078 Electronic Leak Detector
GE-50744 R-1234yf PAG O
SEE MORE:
OnStar Microphone Malfunction (IOR/IOU/IOT/IOS)
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.
Refer to Diagnostic Procedure Instructions provide an overview of each
diagnostic category.
DTC Descr
DTC P0778, P0966, or P0967
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Refer to Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis: Refer to Strategy
Based Diagnosis
An overview of each diagnostic category can be found here: R
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