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2003 GMC Savana 2500 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
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- Technical Service Bulletins
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 GMC Savana 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
your GMC Savana 2500 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
Component Replacement & Adjustment -> Express & Savana -> Heater Core, Replace -> Front -> Rear
Vehicle: 2003 GMC Savana 2500 4.3 V6 GAS
Front
- Drain engine coolant into suitable container.
- Disconnect clamps, then remove heater core inlet and outlet hoses.
- Remove case mounting screws and open heater core access door.
- Cut marked section of heater core access door.
- Remove mounting screws and heater core.
- Reverse procedure to install, noting the following:
- Torque heater core mo...
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BRAKE SERVICE PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
Power Brake Units -> Bendix Brake Booster -> Power Brake Unit Replacement -> Astro & Safari -> C & K Series -> Express & Savana -> P Series
Vehicle: 2003 GMC Savana 2500 4.8 V8 GAS
Astro & Safari
- Apply parking brake.
- Disconnect reservoir and power steering hoses from booster.
- Remove master cylinder to brake booster retaining nuts.
- Position and support master cylinder away from booster.. Do not remove hydraulic lines from master cylinder.
- Remove booster rod from top of brake pedal.
- Remove booster mounting nuts from inside of vehicle.
- Remove booster assembly and gasket.
- Reverse procedure to install, noting the following:
- Torque booster mounting nuts to 27 ft. lbs.
- Torque master cylinder retaining nuts to 27 ft. lbs.
- Torque power steering hoses to booster n...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Pressure Relief -> Except Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Tracker & Uplander -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 2003 GMC Savana 2500 4.8 V8 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.
Engines Less Fuel Pressure ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2003 GMC Savana 2500 4.3 V6 GAS
Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.
Disassemble
- Support propeller shaft in a line horizontal with table of a press.
- Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
- On models equipped with external snap ring retainers, proceed as follows:
- Disassemble snap rings by ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
Alternator, Replace
Vehicle: 2003 GMC Savana 2500 4.8 V8 GAS
- Disconnect battery ground cable.
- Remove coolant reservoir and air cleaner.
- Remove upper fan shroud.
- Remove drive belt.
- Remove heater hose pipe from alternator and oil fill tubes from support bracket.
- Remove alternator ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
General Motors Corp./Saturn Trucks -> StabiliTrak Control System Warning Lamp ->
Vehicle: 2003 GMC Savana 2500 4.8 V8 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the warning...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
Radiator, Replace
Vehicle: 2003 GMC Savana 2500 5.3 V8 GAS
- Drain cooling system into a suitable container, then disconnect hose from coolant reservoir.
- Remove coolant recovery reservoir retaining screws, then coolant recovery reservoir.
- Remove air intake duct, then disconnect mass air flow sensor electrical connector.
- Remove MAF/IAT sensor, then pull up on air clea...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 GMC Savana 2500 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 GMC Savana 2500 4.3 V6 GAS
These engines use a single serpentine drive belt to drive all engine-mount accessories. All belt drive accessories are rigidly mounted with belt tension maintained by a spring loaded automatic tensioner.
- Rotate tensioner counterclockwise using suitable 1/2 inch break...
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COMPONENT LOCATION DIAGRAMS FOR 2003 GMC Savana 2500 AUTOMOBILES
Component location diagrams for most 2003 GMC Savana 2500 cars and light trucks sold in the U.S. from 1990+.
 Passenger Door Harness Routing Diagram for 2003 GMC Savana 2500 4.3 V6 GASComponents on diagram: |
 Center Of The Engine Diagram for 2003 GMC Savana 2500 6.0 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 GMC Savana 2500 AUTOMOBILES
OEM drawn wiring diagrams for most 2003 GMC Savana 2500 cars and light trucks sold in the U.S.
 2003 GMC Savana 2500 5.3 V8 GAS Wiring DiagramComponents on diagram: |
 2003 GMC Savana 2500 6.0 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 GMC Savana 2500 AUTOMOBILES
OEM TSB listings for most 2003 GMC Savana 2500 cars and light trucks sold in the U.S. from 1985+.
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Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2003 GMC Savana 2500 4.3 V6 GAS Auto Systems: |
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Document: Front or Rear Axle Vent Hose Fluid Leak Vehicle: 2003 GMC Savana 2500 4.3 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 GMC Savana 2500 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 GMC Savana 2500 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2003 GMC Savana 2500 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2003 GMC Savana 2500 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2003 GMC Savana 2500 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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