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2003 Chevrolet Blazer CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
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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 Chevrolet Blazer 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 Blazer automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
Compressor Service -> Harrison Compressors -> Clutch Plate & Hub, Replace -> HD6/HT6/HU6 Compressors -> Installation -> Removal -> V5 & V7 Compressors
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
Service procedures given are for compressor removed and mounted in suitable holding fixture. However, on most applications, compressor clutch components can be serviced without removing compressor or recovering refrigerant from system. If refrigerant recovery becomes required, refer to for procedure.
To prevent serious internal compressor damage, when removing or installing clutch components, never apply pressure directly to the compressor shaft. Always use a suitable shaft protector.
Removal
V5 & V7 Compressors
- On conventional mount compre...
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BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
Hydraulic Brake Systems -> Component Replacement -> Master Cylinder
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
Master Cylinder
- On models equipped with manual brake system, disconnect master cylinder pushrod from brake pedal.
- On all models, disconnect all wire conne...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Chevrolet Blazer 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 Blazer 4.3 V6 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...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
- Unlock steering column so that steering linkage is free to move.
- Raise the vehicle. Support vehicle with suitable safety stands.
- Remove front tire and wheel assemblies.
- In order to prevent drive axle from turning, insert a drift through brake caliper and into one of the rotor vanes.
- Remove axle nut and washer.
- Remove drift from brake rotor.
- Remove front brake rotors and support caliper with piece of wire in order to prevent damage to brake hose.
- Remove brackets from upper control arm holding both ABS wire and brake hose.
- Remove ABS bracket located on top of upper control arm ball...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
Alternator, Replace
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
- Disconnect battery ground cable.
- Remove air inlet duct.
- Remove heater hose brace bolt from rear of alternator.
- Disconnect alternator electrical connectors.
- Remove accessory drive belt.
- Remove alternator mountin...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
General Motors Corp./Saturn Trucks -> Change Trans Fluid Indicator ->
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
This message will appear on the DIC (Driver Information Center) when it is time to change the transmission fluid....
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
Inlet
- Drain cooling system into a suitable container.
- Reposition heater core inlet hose clamp at intake manifold fitting.
- Remove hose from intake manifold fitting.
- Reposition heater hose inlet clamp at heater core.
- Remove heater inlet hose from heater core.
- Remove hose from vehicle.
- Reverse pr...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Chevrolet Blazer AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Chevrolet Blazer AUTOMOBILES
Component location diagrams for most 2003 Chevrolet Blazer cars and light trucks sold in the U.S. from 1990+.
 Inflatable Restraint Steering Wheel Module/Horn Pad Diagram for 2003 Chevrolet Blazer 4.3 V6 GASComponents on diagram: |
 Evaporative Emission Canister Vent Solenoid and Canister Diagram for 2003 Chevrolet Blazer 4.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Chevrolet Blazer AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Chevrolet Blazer cars and light trucks sold in the U.S.
 2003 Chevrolet Blazer 4.3 V6 GAS Wiring DiagramComponents on diagram: |
 2003 Chevrolet Blazer 4.3 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Chevrolet Blazer AUTOMOBILES
OEM TSB listings for most 2003 Chevrolet Blazer 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 Chevrolet Blazer 4.3 V6 GAS Auto Systems: |
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Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 2003 Chevrolet Blazer 4.3 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Chevrolet Blazer AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Chevrolet Blazer 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 Blazer 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 Blazer 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 Blazer 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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