GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
1998
🢒
Seville
🢒
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
Blower Motor Description
Compressor 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 System Description
HVAC Air Delivery/Temperature Control Circuit Description
HVAC Blower Controls Circuit Description
HVAC Compressor Controls Circuit Description
HVAC Temperature Controls Circuit Description
Inside Air Temperature Sensor Description
Maintaining Chemical Stability
O-Ring/Flat Washer Description
Odor Diagnosis
Operating Modes
Passenger Compartment Air Filter Description
Programmer Description
Purge Mode Description
Refrigerant Oil Distribution
Refrigerant R-134a
Refrigeration System Description
Relays and Sensors Description
Sun Load Temperature Sensor Description
All Special Tools and Equipment
Special Tools
All Visual Identification
HVAC Connector End Views
Diagnostic Procedures
Air Delivery Improper
Air Delivery Improper - Auxiliary
Air Temperature Control Inoperative
Air Temperature Display Inaccurate
Auxiliary Blower Motor Inoperative at Any Speed
Blower Has High Speed Only
Blower Motor Always On
Blower Motor Inoperative at Any Speed
Diagnostic Trouble Code (DTC) Clearing
Diagnostic Trouble Code (DTC) Displaying
Heating Insufficient
HVAC Air Delivery System Check
HVAC Blower Controls System Check
HVAC Compressor Clutch Does Not Disengage
HVAC Compressor Clutch Does Not Engage
HVAC Compressor Controls System Check
Noise Diagnosis
Diagnostic Trouble Codes
DTC Table
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
Cooling Insufficient - Air Conditioning (A/C) Inoperative
Diagnostic System Check
Intermittents and Poor Connections
Leak Testing
Scan Tool Data List
Scan Tool Diagnostics
Sensor Resistance Table
System Performance Test
Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
GM SPO Group Numbers
Refrigerant Oil Distribution Specifications
System Capacities
Removal, Installation, and Replacement
Afterblow Enabling
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
Air Conditioning (A/C) Temperature Sensor Replacement
Air Conditioning Accumulator Replacement
Air Conditioning Compressor Replacement
Air Conditioning Condenser Replacement
Air Conditioning Evaporator Core Replacement
Air Conditioning Evaporator Hose Assembly Replacement
Air Inlet Actuator Replacement
Air Mix Actuator Replacement - Driver
Air Mix Actuator Replacement - Passenger
Ambient Temperature Sensor Replacement
Auxiliary Blower Motor and Fan Replacement
Auxiliary Blower Motor Resistor Replacement
Auxiliary Mode Valve Actuator Replacement
Blower Motor and Fan Replacement
Blower Motor Control Module Replacement
Control Assembly Replacement
Defroster Air Outlet Replacement
Discharge Hose Replacement
Expansion (Orifice) Tube Replacement
Heater Core Replacement
Heater Hoses Replacement
Heater Temperature Sensor Replacement
HVAC Module Assembly Replacement
Inside Air Temperature Sensor Replacement
Mode Valve Actuator Replacement
Odor Correction
Passenger Compartment Air Filter Replacement
Refrigerant Recovery and Recharging
Service Ports Replacement
Suction Hose Replacement
Sun Load Temperature Sensor Replacement
Temperature Sensor Replacement - Low Side