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2004 Mercury Mountaineer CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Mercury 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
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 2004 Mercury Mountaineer AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 2004 Mercury Mountaineer Premier 4.6 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 2004 Mercury Mountaineer AUTOMOBILES
Power Brake Units -> Bendix Vacuum Brake Booster -> Description
Vehicle: 2004 Mercury Mountaineer 4.0 V6 GAS
The single and tandem vacuum boosters, Figs. and , are self contained vacuum hydraulic power braking units. These are vacuum suspended units that use vacuum and atmospheric pressure for their power.
On models equipped with gasoline engines, vacuum is supplied through a fitting in the intake manifold. On models equipped with diesel engines, vacuum is supplied through a vacuum pump.
The three basic elements of the booster are the vacuum power chamber, mechanically actua...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 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: 2004 Mercury Mountaineer Premier 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 2004 Mercury Mountaineer AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2004 Mercury Mountaineer Premier 4.0 V6 GAS
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 2004 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: 2004 Mercury Mountaineer Premier 4.0 V6 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 2004 Mercury Mountaineer AUTOMOBILES
Alternator, Replace
Vehicle: 2004 Mercury Mountaineer 4.0 V6 FLEX
- Disconnect battery ground cable.
- Rotate front end accessory drive belt tensioner counterclockwise, then position front end accessory drive belt aside.
- Position protective cover aside, then remove alternator B+ terminal nut.
- Disconnect...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2004 Mercury Mountaineer AUTOMOBILES
Ford Motor Co. Trucks -> Fuel Reset ->
Vehicle: 2004 Mercury Mountaineer 4.6 V8 GAS
The FUEL RESET indicator is grounded through the inertia switch whenever vehicle is in a high force situation. The Inertia F...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Mercury Mountaineer AUTOMOBILES
Radiator, Replace
Vehicle: 2004 Mercury Mountaineer 4.6 V8 GAS
- Raise and support vehicle.
- Drain cooling system into suitable...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Mercury Mountaineer AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2004 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 2004 Mercury Mountaineer AUTOMOBILES
Component location diagrams for most 2004 Mercury Mountaineer cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2004 Mercury Mountaineer AUTOMOBILES
OEM drawn wiring diagrams for most 2004 Mercury Mountaineer cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2004 Mercury Mountaineer AUTOMOBILES
OEM TSB listings for most 2004 Mercury Mountaineer cars and light trucks sold in the U.S. from 1985+.
Document: DTC P0505 / P0506 / HESITATION / LOSS OF RPM / DIFFICULTY STARTING / LOW IDLE RPM Vehicle: 2004 Mercury Mountaineer 4.0 V6 GAS Symptoms: |
Document: UNITIZED SEAL DIAGNOSIS - LEAK / GREASE OIL SEPARATION - AXLE BEARING SEAL 8.8 IFS, 8.8 IRS, AND 9.75 IRS AXLES - REVISED Vehicle: 2004 Mercury Mountaineer 4.6 V8 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2004 Mercury Mountaineer AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 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 2004 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 2004 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 2004 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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