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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Hummer H2 car and truck
repair procedures including Hummer engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your 2003 Hummer H2 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Hummer H2 cars and light trucks from 1990+
Component Replacement & Adjustment -> Hummer H2 -> Blower Motor, Replace
Vehicle: 2003 Hummer H2 6.0 V8 GAS
- Remove mounting bolts and sound insulator panel.
- Disconnect electrical connector, then remove mounting screws and blower motor, Fig. . Discard retainer...
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A/C & HEATER SERVICE PROCEDURES FOR 2003 Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Hummer H2 cars and light trucks from 1990+
Component Replacement & Adjustment -> Hummer H2 -> Thermostat, Replace
Vehicle: 2003 Hummer H2 6.0 V8 GAS
The thermostat is not serviceable separately. The housing and thermostat must be replaced as an assembly.
- Drain cooling system/engine block into suitable container.
- Loosen clamps at throttle body and at Mass Air Flow (MAF) sensor and remove air cleaner ...
CLICK HERE TO GET FULL ACCESS TO 2003 Hummer H2 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Hummer H2 cars and light trucks from 1990+
A/C Data -> Domestic Light Trucks & Vans -> AM General
Vehicle: 2003 Hummer H2 6.0 V8 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Hummer H2 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Hummer H2 cars and light trucks from 1990+
Component Replacement & Adjustment -> Hummer H2 -> Accumulator, Replace
Vehicle: 2003 Hummer H2 6.0 V8 GAS
- Recover refrigerant as outlined in .
- Disconnect low pressure switch electrical connector.
- Remove nuts, then the compressor hose and evaporator fitting.
- Remove bracket nut and accumulator.
- Remove bolt and mounting...
CLICK HERE TO GET FULL ACCESS TO 2003 Hummer H2 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Hummer H2 cars and light trucks from 1990+
Component Replacement & Adjustment -> Hummer H2 -> Technical Service Bulletins -> 2003 HUMMER H2 -> 2003-04 HUMMER H2 -> Air Conditioning Inoperative/Intermittent, Blows Warm Air -> Insufficient HVAC System Cooling, Hissing Noise On Engine Shut Off -> Underhood Rattle Noise Heard On Acceleration
Vehicle: 2003 Hummer H2 6.0 V8 GAS
Underhood Rattle Noise Heard On Acceleration
2003-04 HUMMER H2
On some of these models there may be an underhood rattle noise heard on acceleration or a sudden loss of air condition system performance.
This condition may be caused by liquid slugging of compressor. This condition may cause an internal failure in compressor.
To correct this condition, proceed as follows:
- Open hood and inspect compressor for damage and to see if it is seized.
- Ensure serpentine belt is not damaged or missing.
- If compressor i...
CLICK HERE TO GET FULL ACCESS TO 2003 Hummer H2 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Hummer H2 cars and light trucks from 1990+
Component Replacement & Adjustment -> Hummer H2 -> Water Pump, Replace
Vehicle: 2003 Hummer H2 6.0 V8 GAS
- Drain cooling system into suitable container.
- Loosen air cleaner outlet duct clamps at throttle body and Mass Air Flow/Intake Air Temperature (MAF/IAT) sensor.
- Remove radiator inlet hose clip from outlet duct.
- Remove air cleaner outlet duct.
- Remove radiator vent inlet hose from radiator hose clips.
- Disconnect clamp and remove inlet hose inlet hose from water pump.
- Remove radiator inlet hose from an shroud retainer.
- Remove fan shroud bolt.
- Remove transmission oil cooler line from fan shroud retainer.
- Rotate slip ring from in fan sh...
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