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2003 Mercury Mountaineer CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Mercury 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!

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Get Full Access 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!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Mercury mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2003 Mercury Mountaineer vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS

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BRAKE SERVICE PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES

Hydraulic Brake Systems -> Description -> Bendix Hydro-Boost Brake Booster -> Bendix Hydro-Max Brake Booster -> Combination Valve -> Height Sensing Proportioning Valve -> Hydraulic Control Unit (HCU) -> Hydraulic Control Valves -> Integral Bypass Proportioning Valve -> Master Cylinder
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX

Master Cylinder

The master cylinder consists primarily of a hydraulic cylinder, primary and secondary hydraulic pistons and a single or dual chamber fluid reservoir. The front brakes are connected to the primary outlet port(s) and are actuated by the primary piston assembly. The rear brakes are connected to the secondary outlet port and are actuated by the secondary piston assembly.

Hydraulic Control Valves

Combination Valve

This multi-function hydraulic control unit consists primarily of a pressure differential valve, brake lamp warning switch and a proportioning valve. A pressure diff...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES

Ford Motor Co. Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Except Diesel Engines & Villager
Vehicle: 2003 Mercury Mountaineer 4.0 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 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

Component Locations
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX

Refer to Figs...

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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 -> Low Oil Level Warning Indicator ->
Vehicle: 2003 Mercury Mountaineer 4.6 V8 GAS

This system is used to indicate a low engine oil level condition. The lamp should light during engine starting. If oil level is sufficient, the lamp should go off when engine is operating. If oil level is low the...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES

Radiator, Replace
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX

  • Raise and support vehicle.
  • Drain cooling system into suitable...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Mercury Mountaineer AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Mercury Mountaineer 4.0 V6 FLEX

  • Disconnect battery ground cable from battery.
  • Rotate accessory drive belt tensioner counterclockwise to relieve t...

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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+.

RH A Pillar Diagram for 2003 Mercury Mountaineer  4.0 V6 FLEXRH A Pillar Diagram for 2003 Mercury Mountaineer 4.0 V6 FLEX

Components on diagram:
  • Inertial Fuel Shutoff Switch
  • Ground G-200
  • Connector C-260
  • Connector C-282
  • Ground G-202
  • In Roof Panel Diagram for 2003 Mercury Mountaineer  4.6 V8 GASIn Roof Panel Diagram for 2003 Mercury Mountaineer 4.6 V8 GAS

    Components on diagram:
  • Rear A/C Control Module
  • Interior/Map Lamps Assembly
  • Connector C-931
  • Connector C-938a
  • Connector C-938b
  • CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Mountaineer PARTS/COMPONENTS LOCATION DIAGRAMS!

    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  4.6 V8 GAS Wiring Diagram2003 Mercury Mountaineer 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • Vanity Mirror Lamp, Right
  • Vanity Mirror Lamp, Left
  • Interior/Map Lamps Assembly, Front
  • Homelink Module
  • 2003 Mercury Mountaineer  4.0 V6 FLEX Wiring Diagram2003 Mercury Mountaineer 4.0 V6 FLEX Wiring Diagram

    Components on diagram:
  • Driver Seat Module
  • Adjustable Pedal Switch
  • CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Mountaineer WIRING DIAGRAMS!

    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+.

    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:
  • Leaks
  • Auto Systems:
  • Drive Axles, Shafts, U-Joints, CV-Joints
  • 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:
  • Chassis Electrical, Wiring, Fuses & Breakers, Wipers, Motors
  • CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Mountaineer TECHNICAL SERVICE BULLETINS!

    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

    CLICK HERE TO GET FULL ACCESS TO 2003 Mercury Mountaineer SPECIFICATIONS DATA!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details about 2001 Mercury Mountaineer Grille Assembly2001 Mercury Mountaineer Grille Assembly, With emblem provision, headlight holes, chrome frame, and black grille insert; A high quality, OE replacement complete grille and shell assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $126.56

    Click here to view more details about 2003 Mercury Mountaineer Fog Light, Driver Side2003 Mercury Mountaineer Fog Light, Driver Side.

    Source: Auto Body Parts Store

    $25.64

    Click here to view more details about 2010 Mercury Mountaineer 16" x 6.5" Steel Wheel2010 Mercury Mountaineer 16" x 6.5" Steel Wheel, Steel Wheel; 16 X 6.5; 18 Holes; 5 Lug; 4.5 Inch BP; Ident 1L24cb; Black, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $69.50

    Click here to view more details about 2000 Mercury Mountaineer V6, 4 L, 245 CID Rebuilt Engine2000 Mercury Mountaineer V6, 4 L, 245 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,328.00

    Click here to view more details2002 Mercury Mountaineer Used Upper Control Arm, Passenger Side, 4.0, AUTO, RWD R, (4 Dr), exc. Sport Trac; R., Very Good.

    Source: Used Auto Parts Store

    $86.00

    Click here to view more details2008 Mercury Mountaineer Used Bumper Bar, Rear, 4DR, White, BASE w/foam, Very Good.

    Source: Used Auto Parts Store

    $163.00
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