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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 GMC Sierra 2500 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
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A/C & HEATER SERVICE PROCEDURES FOR 2004 GMC Sierra 2500 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 2004 GMC Sierra 2500 cars and light trucks from 1990+
Component Replacement & Adjustment -> Sierra & Silverado -> Blower Motor, Replace -> Delphi -> Visteon
Vehicle: 2004 GMC Sierra 2500 6.0 V8 GAS
Delphi
- Remove mounting bolts and HVAC module insulator.
- Remove blower motor insulating cover mounting screws.
- Disconnect blower motor electrical connector.
- Remove blower motor insulating cover.
- Disconnect blower motor from heater/ventilation module by pulling tab down while turning motor counterclockwise.
- Remove blower motor, noting the following:
- Torque blower motor insulatin...
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A/C & HEATER SERVICE PROCEDURES FOR 2004 GMC Sierra 2500 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 2004 GMC Sierra 2500 cars and light trucks from 1990+
Manual Air Conditioning & Heater System Diagnosis & Testing -> Sierra & Silverado -> Heater Troubleshooting
Vehicle: 2004 GMC Sierra 2500 6.0 V8 GAS
Refer to "Diagnostic ... "
CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2004 GMC Sierra 2500 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 2004 GMC Sierra 2500 cars and light trucks from 1990+
Computer Relearn Procedures -> General Motors Corp. -> 1997-98 -> 1998-2000 -> 1998-99 -> 1999-2001 -> 1999-2002 -> 2.2L & 2.4L Engines -> 2000-02 -> 2000-04 -> 2001-02 -> 2001-04 -> 3.1L, 3.4L, 3800/3.8L, 4.0L & 4.6L Engines -> 3.5L Engine -> 5.7L Engine -> Achieva, Alero, Grand Am & Skylark -> Achieva, Cavalier, Skylark & Sunfire -> Alero & Grand Am -> Alero & Malibu -> Aurora -> Aurora, Bonneville, DeVille, LeSabre & Seville -> Aurora, Bonneville, Grand Prix, LeSabre & Park Avenue -> Auto Learn Passlock Procedure -> Body Control Module (BCM) -> Bonneville -> Bonneville, Eighty Eight, LeSabre, LSS & Park Avenue -> C & K Series w/Diesel Engine -> C & K Trucks w/Diesel Engine -> Camaro & Firebird -> Catera -> Cavalier & Sunfire -> Century -> Century, Grand Prix, Impala, Intrigue, Lumina, Monte Carlo & Regal -> Century, Impala, Intrigue, Monte Carlo & Regal -> Corvette -> Crankshaft Position System Variation Learn -> Cutlass & Malibu -> Dash Integration Module (DIM) -> DeVille -> DeVille, Eldorado & Seville -> EEPROM -> Eldorado -> Engine Control Module (ECM) -> Engine Performance -> Except Park Avenue -> Grand Am -> Grand Prix & Regal -> Impala & Monte Carlo -> Instrument Panel Integration Module (IPM) -> Intrigue -> LeSabre -> Less Tech 2 Or Techline Terminal -> Light Truck & Vans -> Park Avenue -> Passenger Cars -> Passkey Module -> Passlock Learn Procedure -> PCM -> Powertrain Control Module (PCM) -> Powertrain Control Module (PCM) & Vehicle Control Module (VCM) -> Rear Integration Module -> Riviera -> Seville -> T50/T60/T20+ -> TDC Offset Adjustment -> Theft Deterrent System Programming -> VCM -> With Tech 2 -> With Techline Terminal & Scan Tool
Vehicle: 2004 GMC Sierra 2500 6.0 V8 GAS
Passenger Cars
Body Control Module (BCM)
Alero & Grand Am
This procedure must be performed if the BCM, Passlock sensor or PCM is replaced. If BCM is not properly programmed, it will not control all the features properly.
- Ensure battery is fully charged and ignition switch is in the ON position.
- Connect a suitably programmed Tech II, or equivalent, scan tool to Data Link Connector (DLC).
- Access scan tool "Special Functions" menu and follow scan tool instructions to program BCM.
- If BCM fails to accept the pr...
CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2004 GMC Sierra 2500 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 2004 GMC Sierra 2500 cars and light trucks from 1990+
General Service Domestic Vehicles -> 2003-04 -> Pressure Gauge Indication
Vehicle: 2004 GMC Sierra 2500 6.0 V8 GAS
Due to the different types of models and systems, typical pressure gauge indications should be used as a guide only. Refer to the "Performance Tests" or "System Pressure Check" for the particular model being tested. When indi...
CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2004 GMC Sierra 2500 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 2004 GMC Sierra 2500 cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
Vehicle: 2004 GMC Sierra 2500 6.0 V8 GAS
CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2004 GMC Sierra 2500 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 2004 GMC Sierra 2500 cars and light trucks from 1990+
Manual Air Conditioning & Heater System Diagnosis & Testing -> Sierra & Silverado -> Air Conditioning System Troubleshooting
Vehicle: 2004 GMC Sierra 2500 6.0 V8 GAS
If an air conditioning system fault is suspected, inspect the following conditions:
- Inspect outer surfaces of radiator and condenser cores to ensure air flow is not blocked by dirt, leaves or other foreign material.
- Restrictions or kinks in condenser core, hoses or tubes.
- Blower motor operation.
- Refriger...
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