Auto Parts Search
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 GMC Sierra 2500 HD car and truck
repair procedures including GMC 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 GMC Sierra 2500 HD automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 GMC Sierra 2500 HD
- 2003 GMC Sierra 2500 HD 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:U
- 2003 GMC Sierra 2500 HD 8.1 V8 GAS, CID:496, Fuel Injection, Aspiration:496, Engine VIN:, Desg:G
- 2003 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:1
- 2003 GMC Sierra 2500 HD 6.0 V8 CNG, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:U
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Sierra 2500 HD 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 GMC Sierra 2500 HD cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
Vehicle: 2003 GMC Sierra 2500 HD 6.0 V8 CNG
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 2500 HD A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Sierra 2500 HD 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 GMC Sierra 2500 HD cars and light trucks from 1990+
Component Replacement & Adjustment -> Sierra & Silverado -> Heating, Ventilation & Air Condition (HVAC) Control Assembly, Replace
Vehicle: 2003 GMC Sierra 2500 HD 6.6 V8 DIESEL
- Apply parking brake.
- On models equipped with automatic transmission, move shift lever down to last gear.
- On all models, tilt steering wheel to full down position.
- Remove instrument cluster trim plate bezel.
- Remove instrument panel storage tray.
- Pull accessory switc...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 2500 HD A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Sierra 2500 HD 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 GMC Sierra 2500 HD cars and light trucks from 1990+
Air Bag System Precautions -> General Motors Corp. -> Disarming -> 1990 -> 1990-93 -> 1990-95 -> 1990-97 -> 1991 -> 1991-93 -> 1991-94 -> 1991-95 -> 1992-93 -> 1992-99 -> 1993-2002 -> 1993-94 -> 1993-98 -> 1994 -> 1994-2002 -> 1994-95 -> 1994-96 -> 1994-98 -> 1995-2002 -> 1995-96 -> 1995-97 -> 1995-98 -> 1995-99 -> 1996 -> 1996-2001 -> 1996-97 -> 1997 -> 1997-2002 -> 1997-98 -> 1997-99 -> 1998-2000 -> 1998-2002 -> 1998-99 -> 1999 -> 1999-2000 -> 1999-2001 -> 1999-2002 -> 2000-02 -> 2001-02 -> 2002 -> 2003 -> 2003-04 -> 2003-04 Except Malibu Maxx -> Achieva & Skylark -> Alero -> Astro & Safari -> Aurora -> Avalanche -> Aveo -> Aztek & Rendezvous -> Beretta & Corsica -> Blazer, Jimmy, Sonoma & S-10 -> Bonneville, Eighty-Eight, LeSabre, LSS, Ninety-Eight & Regency -> Bravada, Envoy, Rainier, SSR & TrailBlazer -> C/K Series -> Camaro & Firebird -> Canyon & Colorado -> Caprice, Custom Cruiser & Roadmaster -> Catera -> Cavalier & Sunfire -> Century -> Corvette -> Coupe -> CTS -> Cutlass -> Cutlass Ciera & Cruiser -> Cutlass Supreme -> DeVille -> Eldorado -> Escalade -> Express, G Series & Savana -> Fleetwood -> Grand Am -> Grand Prix & Intrigue -> Impala -> ION -> L-Series -> Light Trucks & Vans -> Lumina -> Lumina APV, Montana, Silhouette, Trans Sport & Venture -> Malibu -> Malibu Maxx -> Metro -> Monte Carlo -> Park Avenue -> Passenger Cars -> Prizm -> Reatta, Toronado & Trofeo -> Regal -> Riviera -> S-Series -> Sedan -> Seville -> Sierra & Silverado -> SRX -> Storm -> Suburban, Tahoe, Yukon & Yukon XL -> Tracker -> Vibe -> VUE -> XLR -> Zone 1 -> Zone 10 -> Zone 12 -> Zone 2 -> Zone 3 -> Zone 4 -> Zone 5 -> Zone 6 -> Zone 7 -> Zone 8 -> Zone 9 -> Zones 1 & 7 -> Zones 2 & 6 -> Zones 5 & 9 -> Zones 7 & 9
Vehicle: 2003 GMC Sierra 2500 HD 6.0 V8 CNG
Passenger Cars
The Sensing and Diagnostic Module (SDM) can maintain enough voltage to cause air bag deployment for up to 10 minutes after the ignition is turned Off and the battery is disconnected. Servicing the Supplemental air bag (SIR) system during this period may result in accidental deployment and personal injury.
Achieva & Skylark
1994-96
- Ensure front wheels are in straight-ahead position.
- Turn ignition switch to LOCK position.
- Remove AIR BAG fuse from fuse block.
- On 1995 models, remove lefthand sound insulator panel to ac...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 2500 HD A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Sierra 2500 HD 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 GMC Sierra 2500 HD cars and light trucks from 1990+
Manual Air Conditioning & Heater System Diagnosis & Testing -> Sierra & Silverado -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable
Vehicle: 2003 GMC Sierra 2500 HD 8.1 V8 GAS
Air Bag System Disarming & Arming
Refer to and for air bag system disarming and arming proced...
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 2500 HD A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Sierra 2500 HD 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 GMC Sierra 2500 HD cars and light trucks from 1990+
Manual Air Conditioning & Heater System Diagnosis & Testing -> Sierra & Silverado -> Heater Troubleshooting
Vehicle: 2003 GMC Sierra 2500 HD 6.6 V8 DIESEL
Refer to "Diagnostic ... "
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 2500 HD A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Sierra 2500 HD 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 GMC Sierra 2500 HD cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
Vehicle: 2003 GMC Sierra 2500 HD 6.6 V8 DIESEL
CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 2500 HD A/C & HEATER SERVICE PROCEDURES
Shop online for auto body parts, engines, wheels, lights...
| More parts |
