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2003 Ford Ranger CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Ford REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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

A/C & HEATER SERVICE PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Component Replacement & Adjustment -> Ranger -> Accumulator/Drier, Replace
Vehicle: 2003 Ford Ranger 2.3 L4 GAS
- Recover refrigerant as outlined under .
- Disconnect connector and remove cycling switch.
- Disconnect refrigerant lines using suitable spring lock coupling too.
- Remove...
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BRAKE SERVICE PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Disc Brakes -> Tightening Specifications
Vehicle: 2003 Ford Ranger 3.0 V6 GAS
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Ford Motor Co. Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Except Diesel Engines & Villager
Vehicle: 2003 Ford Ranger 3.0 V6 FLEX
The fuel system remains under high pressure even when the engine is not running. This residual pressure must be relieved before servicing the fuel system. To avoid injury or fire, release pressure from the fuel system before disconnecting any fuel line.
The fuel system pressure must be relieved prior to disconnecting fuel lines 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 10 miles or more while it relearns its adaptive strategy.
On model...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble -> Single Cardan, Flange Yoke -> Single Cardan, Slip Yoke
Vehicle: 2003 Ford Ranger 2.3 L4 GAS
Single Cardan, Slip Yoke
Disassemble
Do not, under any circumstance, clamp the shaft in the jaws of a vise or similar holding fixture. Denting or localizing fracture can result, causing shaft failure during vehicle operation. Place the shaft on a suitable workbench. Do not damage the tube. If components are not marked and installed incorrectly, driveline imbalance can occur.
- Index-mark the shaft components.
- Remove and discard all four snap rings.
- Clamp bearing cup removal tool No. 205-086 or equivalent in a vise.
- If necessary, use a pair of pliers to remove a bearing cup t...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Alternator, Replace
Vehicle: 2003 Ford Ranger 2.3 L4 GAS
- Disconnect battery ground cable.
- Remove air cleaner outlet tube.
- Remove accessory drive belt.
- Remove alternator mounting bolts, position alternator aside.
- Disconnect electrical connector from alternator.
- Position protective cover aside, remove nut and position alternator B+ terminal aside.
- On models equ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Ford Motor Co. Trucks -> Air Bag Warning Lamp ->
Vehicle: 2003 Ford Ranger 3.0 V6 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the Air Bag warning ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Radiator, Replace
Vehicle: 2003 Ford Ranger 2.3 L4 GAS
- Drain cooling system into suitable container.
- Disconnect coolant overflow hose from radiator and position away from radiator.
- Disconnect upper radiator...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Ford Ranger AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Ford Ranger 2.3 L4 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 Ford Ranger AUTOMOBILES
Component location diagrams for most 2003 Ford Ranger cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2003 Ford Ranger AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Ford Ranger cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Ford Ranger AUTOMOBILES
OEM TSB listings for most 2003 Ford Ranger cars and light trucks sold in the U.S. from 1985+.
Document: RECALL - CERTAIN 1992-2003 MODEL YEAR CARS AND TRUCKS - FUSED JUMPER HARNESS REPLACEMENT FOR VEHICLES SERVICED WITH AN INCOMPATIBLE FUSED JUMPER HARNESS Vehicle: 2003 Ford Ranger 3.0 V6 GAS Auto Systems: |
Document: GRABBING CONDITION FROM FRONT REAR DRUM BRAKES - REVISED Vehicle: 2003 Ford Ranger 3.0 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Ford Ranger AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Ford Ranger 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 Ford Ranger 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 Ford Ranger 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 Ford Ranger 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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