GM Service Manual Online
For 1990-2009 cars only
Makes
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Pontiac
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1998
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Grand Prix
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HVAC
🢒 HVAC Systems - Automatic
HVAC
All Component Locator
HVAC Component Views
HVAC Components
All Description and Operation
Accumulator Description
Actuator Description
Air Conditioning (A/C) Refrigerant Pressure Sensor Description
Air Conditioning (A/C) System Description
Air Distribution System Description
Ambient Air Temperature Sensor Description
Automatic Air Conditioning (A/C) System Description
Blower Control Module Description
Blower Motor Description
Condenser Description
Control Assembly Description
Dual Zone Air Conditioning (A/C) System Description
Evaporator Description
Expansion (Orifice) Tube Description
Handling Air Conditioning Compressor Oil
Handling of Refrigerant Lines and Fittings
Handling Refrigerant R-134a
Heater Core Description
HVAC Air Delivery/Temperature Control Circuit Description
HVAC Blower Controls Circuit Description
HVAC Compressor Controls Circuit Description
Inside Air Temperature Sensor Description
Maintaining Chemical Stability
O-Ring/Flat Washer Description
Refrigerant R-134a
Refrigeration System Description
Relays and Sensors Description
Sun Load Temperature Sensor Description
Vacuum Electrical Solenoid Description
Vacuum Hose Harness Description
All Special Tools and Equipment
Special Tools
All Visual Identification
HVAC Connector End Views
Cleaning, Inspection, and Adjustment
Compressor Leak Testing
Diagnostic Procedures
Air Temperature Display Inaccurate
Blower Motor Always On
Blower Motor Inoperative at Any Speed
DTC 01, 03 and 08 or 02 and 04 Temp Controls Inop
Heating Insufficient
HVAC Air Delivery System Check
HVAC Blower Controls System Check
Noise Diagnosis
Diagnostic Trouble Codes
DTC 01 Inside Air Temp Sensor Circuit Shorted
DTC 02 Inside Air Temp Sensor Circuit Open
DTC 03 Outside Air Temp Sensor Circuit Shorted
DTC 04 Outside Air Temp Sensor Circuit Open
DTC 05 LH air Door Motor Circuit Open or Shorted
DTC 06 RH air Door Motor Circuit Open or Shorted
DTC 07 UART Serial Data Line Fault
DTC 08 Sun Load Temp Sensor Open
DTC Table
Disassembly, Overhaul, Repair, and Assembly
Air Conditioning Clutch Coil Installation
Air Conditioning Clutch Coil Removal
Clutch Rotor and Bearing Removal
Clutch Rotor and/or Bearing Install
Compressor Clutch Plate and Hub Assembly Removal
Compressor Clutch Plate/Hub Assembly Install
Compressor Control Switches Install
Compressor Control Switches Removal
Compressor Control Valve Assembly Install
Compressor Control Valve Assembly Removal
Compressor Pressure Relief Valve Installation
Compressor Pressure Relief Valve Removal
Compressor Shaft Seal Install
Compressor Shaft Seal Removal
Electrical/Electronic Schematic Diagrams
HVAC Air Delivery/Temperature Control Schematics
HVAC Blower Control Schematics
HVAC Compressor Control Schematics
HVAC Schematic Icons
HVAC Schematic References
General Diagnostic Information
Blower Delay
Diagnostic System Check
Leak Testing
Odor Diagnosis
Refrigerant System Checks
System Performance Test
Vacuum Test
VDOT Air Conditioning (A/C) System Diagnosis
Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
GM SPO Group Numbers
Refrigerant Oil Distribution Specifications
System Capacities
Removal, Installation, and Replacement
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
Air Conditioning Accumulator Replacement
Air Conditioning Compressor Hose Replacement
Air Conditioning Compressor Replacement
Air Conditioning Condenser Replacement
Air Conditioning Evaporator Core Replacement
Air Distributor Duct Replacement
Air Inlet Actuator Replacement
Ambient Temperature Sensor Replacement
Auxiliary Air Distributor Duct Replacement
Blower Motor and Fan Replacement
Blower Motor Control Module Replacement
Compressor Relay Replacement
Condenser Tube Replacement
Control Assembly Replacement
Defroster Valve Actuator Replacement
Evaporator Tube Replacement
Expansion (Orifice) Tube Replacement
Heater Core Replacement
Heater Hoses Replacement
Heater Inlet Pipe Adapter Replacement
Heater Inlet Pipe Replacement
Heater Outlet Pipe Adapter Replacement
HVAC Module Assembly Replacement
Inside Air Temperature Sensor Replacement
O-Ring Replacement
Odor Correction
Refrigerant Recovery and Recharging
Service Ports Replacement
Suction Hose Replacement
Sun Load Temperature Sensor Replacement
Temperature Actuator Replacement
Vacuum Electrical Solenoid Replacement
Vacuum Tank Replacement