Heating and Air Conditioning: Technical Service Bulletins

• Recalls
  • Recall 84V095000: Rear A/C Blower Defect
  • Recall - Evaporator Case/Blower Resistor Inspection
• Customer Interest
  • Body - Broken Rear Window Defogger Grid Detection
  • A/C - Musty Odors Emitted From (HVAC) System
  • A/T, Rear - Poor Performance
  • A/C - Updated Wiring & Description Rear A/C Blower
  • Defroster Outlet - Delamination Condition
  • A/C - R12 Loss From Loose or Missing Access Fitting Caps
  • A/C - Refrigerant Hose & Clamp Repairs
• By Symptom
  • Abnormal wear/deterioration
    • Defroster Outlet - Delamination Condition
  • Customer Interest
    • Body - Broken Rear Window Defogger Grid Detection
    • A/C - Musty Odors Emitted From (HVAC) System
    • A/T, Rear - Poor Performance
    • A/C - Updated Wiring & Description Rear A/C Blower
    • Defroster Outlet - Delamination Condition
    • A/C - R12 Loss From Loose or Missing Access Fitting Caps
    • A/C - Refrigerant Hose & Clamp Repairs
  • Leaks
    • A/C - R12 Loss From Loose or Missing Access Fitting Caps
    • A/C - Refrigerant Hose & Clamp Repairs
  • Loose
    • Defroster Outlet - Delamination Condition
    • A/C - R12 Loss From Loose or Missing Access Fitting Caps
  • Odors
    • A/C - Musty Odors Emitted From (HVAC) System
  • Poor performance
    • A/T, Rear - Poor Performance
    • A/C - R12 Loss From Loose or Missing Access Fitting Caps
  • Recalls
    • Recall 84V095000: Rear A/C Blower Defect
    • Recall - Evaporator Case/Blower Resistor Inspection
  • Warping
    • Defroster Outlet - Delamination Condition
  • Won't turn off
    • A/C - Updated Wiring & Description Rear A/C Blower
• All Technical Service Bulletins
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • Body - Broken Rear Window Defogger Grid Detection
  • A/C - Musty Odors Emitted From (HVAC) System
  • A/T, Rear - Poor Performance
  • A/C - PureGuard 2 Operating Alert
    • Overview
    • Refrigerant Recovery
    • Oil Injection and Refrigerant Charging
    • Additional ACR4 Operation and Maintenance Tips
    • Tank-to-Tank Refrigerant Transfer
    • Excess Air In Tank
    • Pureguard 2 Error Codes
    • Active Flow Control
  • A/C - Tool And Equipment Maintenance
  • A/C - Systems With R12 Or R134a Service Issue
    • Overview
    • R12 System Retrofitting to R134A
    • Servicing R134A Retrofitted Vehicle Systems
    • R12 and R134A Refrigerants Are Not Interchangeable
    • J 41810 Pureguard 2 R134A Refrigerant Monitor
    • Summarizing GM's A/C Service Recommendations
  • Tools - A/C Leak Detector Maintenance Kit Availability
    • Overview
    • Service Procedure
  • A/C - Updated Wiring & Description Rear A/C Blower
  • Defroster Outlet - Delamination Condition
  • A/C Refrigerant - Contamination
  • A/C - CFC Reduction & Refrigerant Recovery Recycling
  • A/C - Compressor Assembly Availability
  • A/C - System Diagnostic Procedure
    • Overview
    • A.Observe All Safety Precautions:
    • Visual Inspection, Check Charge, Check Electrical & Clutch System
    • E.Check Refrigerant System Performance: Engine Off to Start
    • F.Diagnosis and Service Procedures
  • A/C - Shaft Nut Removal from the HR6HE Compressor
  • A/C Compressor Seal Washer - Reference Chart
  • Recall 84V095000: Rear A/C Blower Defect
  • Recall - Evaporator Case/Blower Resistor Inspection
  • A/C - Refrigerant Loss Prevention
  • A/C - R12 Loss From Loose or Missing Access Fitting Caps
  • A/C - Refrigerant Hose & Clamp Repairs
  • Isolation Diodes - Replacement Information
  • A/C - Use of Alternate Refrigerants In CFC 12
  • Contaminated R12 Refrigerant - Testing & Handling
  • A/C - Retrofitting R-12 Vehicles to R-134A
  • Cooling System, A/C - Aluminum Heater Cores/Radiators