GM Service Manual Online
For 1990-2009 cars only
Makes
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Cadillac
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1998
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DeVille
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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 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 (A/C) Compressor
Handling Air Conditioning Compressor Oil
Handling of Refrigerant Lines and Fittings
Handling Refrigerant R-134a
Heater Core Description
Heater System 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
Operating Modes
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
Cleaning, Inspection, and Adjustment
Compressor Leak Testing
Temperature Valve Link Adjustment - Driver
Temperature Valve Replacement - Passenger
Diagnostic Procedures
Air Delivery Improper
Air Temperature Control Inoperative - Passenger
Blower Motor Always On
Blower Motor Inoperative at Any Speed
Diagnostic Trouble Code (DTC) Clearing
Diagnostic Trouble Code (DTC) Displaying
Heating Insufficient
HVAC Compressor Clutch Does Not Engage
Noise Diagnosis
Diagnostic Trouble Codes
DTC B1310 Ambient Air Temp Sensor Open Circuit
DTC B1311 Outside Air Temp Sensor Short Circuit
DTC B1312 High Side Temp Sensor Open Circuit
DTC B1313 High Side Temp Sensor Short Circuit
DTC B1314 Evaporator Inlet Temp Sensor Open CKT
DTC B1315 Evaporator Inlet Temp Sensor Short CKT
DTC B1316 In Car Temperature Sensor Open Circuit
DTC B1317 In Car Temperature Sensor Short Circuit
DTC B1318 Sunload Sensor Open Circuit
DTC B1319 Sunload Sensor Short Circuit
DTC B1340 Air Mix Door #1 Movement Problem
DTC B1341 Air Mix Door #2 Movement Problem
DTC B1347 Very Low A/C Refrigerant Warning
DTC B1348 Very Low A/C Refrigerant Pressure
DTC B1350 Engine Coolant Over-Temperature
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 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
Cooling Insufficient - Air Conditioning (A/C) Inoperative
Diagnostic System Check
Fault Detection
Functional Check
Leak Testing
Self-Diagnostics
System Performance Test
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) High Pressure Cut-Out Switch 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 Assembly Replacement
Air Mix Actuator Replacement - Driver
Air Mix Actuator Replacement - Passenger
Ambient Temperature Sensor Replacement
Auxiliary Blower Motor and Fan Replacement
Blower Motor and Fan Replacement
Control Assembly Replacement
Control Assembly Replacement - Passenger
Crosscar Air Outlet Replacement
Expansion (Orifice) Tube Replacement
Heater Core Replacement
Inside Air Temperature Sensor Replacement
Odor Correction
Programmer Replacement
Refrigerant Recovery and Recharging
Sun Load Temperature Sensor Replacement
Temperature Sensor Replacement - High Side
Temperature Sensor Replacement - Low Side
Vacuum Electrical Solenoid Replacement
Vacuum Tank Replacement