GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Oldsmobile
🢒
1998
🢒
Eighty Eight
🢒
HVAC
🢒 HVAC Systems - Manual
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
Blower Motor Description
Blower Motor Resistor Description
Compressor Description
Condenser Description
Control Assembly 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 and Air Conditioning Control Vacuum Tank Description
Heater Core Description
Heater System Description
High Pressure Relief Valve Description
HVAC Blower Controls Circuit Description
HVAC Compressor Controls Circuit Description
Maintaining Chemical Stability
Muffler Description
O-Ring/Flat Washer Description
Operating Modes
Refrigerant Oil Distribution
Refrigerant R-134a
Refrigeration System Description
Relays and Sensors Description
Temperature Control Motor Circuit 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
Temperature Valve Link Adjustment
Diagnostic Procedures
Air Delivery Improper
Blower Motor High Speed Inoperative
Blower Motor Inoperative at Any Speed
Blower Motor Low Speed Inoperative
Blower Motor Medium Speed Inoperative
Heating Insufficient
HVAC Compressor Clutch Does Not Engage
Noise Diagnosis
Temperature Actuator Inoperative
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 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
Cooling Insufficient - Air Conditioning (A/C) Inoperative
Functional Check
Intermittents and Poor Connections
Leak Testing
Odor Diagnosis
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) Refrigerant Pressure Sensor Replacement
Air Conditioning Accumulator Replacement
Air Conditioning Compressor Bracket 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
Air Inlet Assembly Replacement
Blower Motor and Fan Replacement
Blower Motor Resistor Replacement
Control Assembly Replacement
Crosscar Air Outlet Replacement
Defroster Valve Actuator Replacement
Expansion (Orifice) Tube Replacement
Heater Core Replacement
Heater/Bi-Level Actuator Replacement
HVAC Module Assembly Replacement
O-Ring Replacement
Refrigerant Recovery and Recharging
Temperature Actuator Replacement
Vacuum Electrical Solenoid Replacement
Vacuum Tank Replacement