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2003 Mercury Mountaineer CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Mercury 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
- Tire Pressure Monitoring System
- 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 Mercury Mountaineer car and truck
repair procedures including Mercury 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 Mercury Mountaineer automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Serpentine Drive Belt Routing -> Domestic Light Trucks & Vans -> Ford Motor Co.
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Anti-Lock Brakes -> Explorer & Mountaineer -> System Service -> ABS Control Module -> Anti-Lock Brake System Hydraulic Control Unit -> Brake System Bleed -> Caliper -> Component Replacement -> Front -> Hydraulic Control Unit (HCU) -> Master Cylinder -> Rear -> Stability Control Sensor Cluster -> Steering Wheel Rotation Sensor -> Wheel Speed Sensor
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX
Brake System Bleed
Master Cylinder
- Connect one end of a clear flexible hose to master cylinder bleeder screw. Submerge other end in a container partially filled with suitable brake fluid.
- Have an assistant pump and then hold firm pressure on brake pedal.
- Open master cylinder bleeder screw until brake fluid flows into container.
- When fluid stops flowing, close bleeder screw.
- Repeat procedure until there are no air bubbles in fluid.
- Have an assistant pump and then hold firm pressure on brake pedal.
- Loosen a master cylinder tube fitting at anti-lock brake hydraulic control unit.
- When fluid s...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Ford Motor Co. Light Trucks, SUVs & Vans -> Fuel Pressure Relief -> Gasoline Fuel Injected Engines Except Escape, Freestar, Mariner, Monterey, Villager, 2005-06 Aviator, Explorer & Mountaineer, 2005-06 Expedition & Navigator & 2004-06 F150 & Mark LT
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS
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 ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX
The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the rear jack storage area. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations.
- Raise and support vehicle.
- Remove wheel and tire assembly.
- Remove wheel hub retainer nut and washer assembly. Discard wheel hub retainer nut and washer assembly. It is a torque prevailing des...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Trouble Code Identification -> Intermittent & Poor Connections -> Intermittents -> Poor Connections -> Symptom Test
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.
Diagnostic Trouble Code Identification
Refer to Fig. for diagnostic trouble code identification.
Clearing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to DLC (Data Link Connector), and follow manufacturer's instructions.
Symptom Test
Refer to Fig. for Symptom Test Chart.
Intermittent & Poor Connections
Intermittents
Most intermittents are caused by faulty electrical connections or wiring. Inspect for the following:
- Wiring ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Starter, Replace
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX
- Disconnect battery ground cable.
- Raise and support vehicle.
- Remove starter motor electrical connectors.
- Remove upper and lower starter motor mounting bolts, then starter motor from vehicle.
- Reverse pr...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Ford Motor Co. Trucks -> Message Center -> 2003-07 Explorer & Mountaineer -> System Check
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS
System Check
The Message Center will perform a system inspection of monitored systems and will indicate either system is OK or a warning message. To perform the System Check proceed as follows:
- Place the ignition switch in the On position.
- Press Message Center Set Up button.
- From Set Up Menu select System Check.
- Press the RESET button to start system inspection.
- The Message Center will cycle through the monitored systems and display an OK or Warning Message for 4 seconds.
- Depressing the RESET button will cycle the Message Center through of the monitored systems.
- Pressing ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from water pump.
- Remove radiator outlet hose from water pump and from vehicle.
- Reverse procedure to in...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS
- Disconnect battery ground cable from battery.
- Rotate accessory drive belt tensioner clockwise, using a suitable...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Mercury Mountaineer AUTOMOBILES
Component location diagrams for most 2003 Mercury Mountaineer cars and light trucks sold in the U.S. from 1990+.
 Air Bag and Safety Belt Pretensioner Supplemental Restraint System Components Diagram for 2003 Mercury Mountaineer 4.6 V8 GASComponents on diagram: |
 Rear, In Roof Panel Diagram for 2003 Mercury Mountaineer 4.6 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Mercury Mountaineer AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Mercury Mountaineer cars and light trucks sold in the U.S.
 2003 Mercury Mountaineer 4.0 V6 FLEX Wiring DiagramComponents on diagram: |
 2003 Mercury Mountaineer 4.6 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Mercury Mountaineer AUTOMOBILES
OEM TSB listings for most 2003 Mercury Mountaineer cars and light trucks sold in the U.S. from 1985+.
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Document: UNITIZED SEAL DIAGNOSIS - LEAK / GREASE OIL SEPARATION - AXLE BEARING SEAL 8.8 IFS, 8.8 IRS, AND 9.75 IRS AXLES - REVISED Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS Symptoms: |
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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 Mercury Mountaineer 4.6 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Mercury Mountaineer AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Mercury Mountaineer 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 Mercury Mountaineer 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 Mercury Mountaineer 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 Mercury Mountaineer 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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