Auto Parts Search
2003 Chevrolet Express 1500 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet 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
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- 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 Chevrolet Express 1500 car and truck
repair procedures including Chevrolet 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 Chevrolet Express 1500 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Component Replacement & Adjustment -> Express & Savana -> Cooling System Bleed
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
- Slowly fill cooling system through upper radiator hose with 50/50 suitable coolant and water mixture until the coolant comes out air bleed hose.
- Connect upper radiator hose to radiator and install hose clamp into original position.
- Connect coolant air bleed hose to radiator.
- Fill radi...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 A/C & HEATER SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Hydraulic Brake Systems -> Component Service -> Assemble -> Bendix Master Cylinder -> Delco Master Cylinder -> Disassemble -> Tracker Master Cylinder -> Wheel Cylinder
Vehicle: 2003 Chevrolet Express 1500 5.3 V8 GAS
Delco Master Cylinder
When performing the following procedures, refer to. Figs. and , noting that the composite reservoir may vary in design.
Disassemble
- Remove master cylinder from vehicle.
- Remove reservoir cover and diaphragm. Discard old brake fluid in reservoir.
- Inspect cover and diaphragm. Replace if cut, cracked or deformed.
- Remove fluid level switch and proportioning valve assembly, if equipped.
- Depress primary piston and remove lock ring.
- Plug primary fluid outlet (outlet nearest to cowl when master cylinder is installed), then apply compressed air into secondary fluid outlet...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Gasoline Engines Except Equinox, Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Uplander & Vue (2004-06) & 2004-06 Envoy, Rainier & TrailBlazer -> Returnless Fuel System
Vehicle: 2003 Chevrolet Express 1500 5.3 V8 GAS
Returnless Fuel System
On models equipped with fuel injected engines, relieve fuel system pressure as outlined under "Fuel System Pressure Relief."
On models equipped with metal collar quick disconnect connectors, GM tool No. J37088-A, or equivalent, will be required to disconnect the connector. Pri...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 FUEL FILTER REPLACEMENT PROCEDURES
DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2003 Chevrolet Express 1500 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 ...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES
STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Starter, Replace
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
- Raise and support vehicle.
- Remove starter to engine brace and heat shields.
- Disconnect wires from solenoids.
- Remove starter motor mounting bolts, washers and lower starter. Record position of shims, if required.
- Remove starter motor from vehicle.
- Reverse procedure to install, noting the fol...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 STARTER & ALTERNATOR REPLACEMENT PROCEDURES
MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
General Motors Corp./Saturn Trucks -> Service Throttle Soon Indicator Lamp ->
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
A "Service Throttle Soon" indicator lamp is mounted in the lower righthand instrument cluster corner on these models. It lights when the ignition is turned On, but should go out approximately 1-5 seconds after the engine starts.
Traditional throttle cables are no longer used on these models. The PCM receives signals from an electron...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 MAINTENANCE LAMP RESET PROCEDURES
RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
Inlet
- Drain cooling system into a suitable container.
- Reposition heater core inlet hose clamp at bypass pipe.
- Remove hose from bypass pipe.
- Reposition heater hose inlet clamp at heater core.
- Remove heater inlet hose from heater core.
- Remove hose from vehicle.
- Reverse procedure to install.
Outlet
- Drain cooling system into a suitable container.
- Reposition heater hose outlet clamp at heater core.
- Disconnect heater outlet hose from hea...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 RADIATOR & HOSE REPLACEMENT PROCEDURES
SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Chevrolet Express 1500 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...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 SERPENTINE BELT SERVICE PROCEDURES
COMPONENT LOCATION DIAGRAMS FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Component location diagrams for most 2003 Chevrolet Express 1500 cars and light trucks sold in the U.S. from 1990+.
 Right Side Door Diagram for 2003 Chevrolet Express 1500 4.3 V6 GASComponents on diagram: |
 Park Neutral Position Switch Diagram for 2003 Chevrolet Express 1500 5.3 V8 GASComponents on diagram: |
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 PARTS/COMPONENTS LOCATION DIAGRAMS!
WIRING DIAGRAMS FOR 2003 Chevrolet Express 1500 AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Chevrolet Express 1500 cars and light trucks sold in the U.S.
 2003 Chevrolet Express 1500 5.3 V8 GAS Wiring DiagramComponents on diagram: |
 2003 Chevrolet Express 1500 5.3 V8 GAS Wiring DiagramComponents on diagram: |
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 WIRING DIAGRAMS!
TECHNICAL SERVICE BULLETINS FOR 2003 Chevrolet Express 1500 AUTOMOBILES
OEM TSB listings for most 2003 Chevrolet Express 1500 cars and light trucks sold in the U.S. from 1985+.
|
Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS Auto Systems: |
|
Document: Front or Rear Axle Vent Hose Fluid Leak Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS Symptoms: |
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 TECHNICAL SERVICE BULLETINS!
COMPONENT/PARTS SPECIFICATIONS FOR 2003 Chevrolet Express 1500 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Chevrolet Express 1500 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 Chevrolet Express 1500 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 Chevrolet Express 1500 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 Chevrolet Express 1500 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
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 SPECIFICATIONS DATA!
Shop online for auto body parts, engines, wheels, lights...
| More parts |
