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1998 Mercury Grand Marquis 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 1998 Mercury Grand Marquis 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 Grand Marquis 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 1998 Mercury Grand Marquis 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 1998 Mercury Grand Marquis AUTOMOBILES

Air Bag System Precautions -> Ford Motor Co. -> Arming -> 1990-91 -> 1990-92 -> 1991-92 -> 1992-93 -> 1992-94 -> 1992-96 -> 1992-98 -> 1993 -> 1993-94 -> 1993-95 -> 1994 -> 1994-95 -> 1994-96 -> 1994-97 -> 1995 -> 1995-2004 -> 1995-96 -> 1995-98 -> 1996-97 -> 1996-99 -> 1997-2000 -> 1997-2001 -> 1997-2004 -> 1997-99 -> 1998 -> 1998-2000 -> 1998-2002 -> 1999-2000 -> 1999-2001 -> 1999-2002 -> 1999-2004 -> 2000 -> 2000-01 -> 2000-04 -> 2001-02 -> 2001-03 -> 2001-04 -> 2002-03 -> 2002-04 -> 2004 -> Aerostar & Bronco -> Aspire -> Aviator -> Blackwood, Expedition & Navigator -> Built After February 2002 -> Built Before March 2002 -> Capri -> Continental -> Contour & Mystique -> Cougar -> Crown Victoria Grand Marquis & Marauder -> Econoline -> Escape -> Escort, Tracer & ZX2 -> Excursion -> Explorer & Mountaineer -> Explorer Sport & Sport Trac -> F Series -> Focus -> Freestar & Monterey -> Light Trucks & Vans -> LS -> Mark VII -> Mark VIII -> Mustang -> Passenger Cars -> Probe -> Ranger -> Sable & Taurus -> Tempo & Topaz -> Thunderbird -> Town Car -> Villager -> Windstar
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

Passenger Cars

Aspire
  • Disconnect battery ground cable.
  • Wait one minute for back-up power supply to deplete stored energy.
  • Remove restraint system diagnostic tool from driver's side air bag module electrical connector.
  • Connect driver's side air bag module electrical connector.
  • Install driver's side air bag module as outlined under "Component Service."
  • Remove restraint system diagnostic tool from passenger's side air bag module electrical connector.
  • Install passenger's side air bag module as outlined under "Component Service."
  • C...

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BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

Power Brake Units -> Description -> Bendix Diaphragm Types -> Bendix Hydro-Boost System -> Operation -> Vacuum Assist Diaphragm Type
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

On Vehicles Equipped With Anti-Lock Brakes Refer To "Anti-Lock Brakes".

Vacuum Assist Diaphragm Type

The vacuum assist diaphragm assembly multiplies the force exerted on the master cylinder piston in order to increase the hydraulic pressure delivered to the wheel cylinders while decreasing the effort necessary to obtain acceptable stopping performance.

Vacuum assist units get their energy by opposing engine vacuum to atmospheric pressure. A piston, cylinder and flexible diaphragm utilize this energy to provide brake assistance. The diaphragm is balanced with engine vacuum until the brake...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

Ford Motor Co. Passenger Cars -> Fuel Shutoff Switch Location -> 1997-06 Crown Victoria, Grand Marquis & Marauder
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

The inertia swi...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

Disassemble

Do not clamp driveshaft in jaws of a vice or a similar holding fixture.

  • Place driveshaft on a suitable workbench.
  • Mark positions of driveshaft components relative to driveshaft tube. This ensures all components are reassembled in same relationship to maintain correct balance.
  • Index driveshaft and driveshaft components.
  • Clamp U-Joint Tool in a vise.
  • Remove snap rings.
  • If bearing cup cannot be pressed all way out, remove it with vise grips.
  • Remove driveshaft slip-yoke.
  • Position driveshaft in U-Joint Tool.
  • Press out a bearing cup.
  • Rotate driveshaft 180 degrees.
  • Press on...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

Starter, Replace
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

  • Disconnect battery ground cable.
  • Raise and support vehicle.
  • Remove starter shield, if required.
  • Disconnect starter cable and push on connector. When disconnecting hardshell connector at S-terminal, grasp plastic shell and pull off. Do not pull on wire. Be careful to pull straight off to prevent damage to connector and S-terminal. If any part of connect...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

Ford Motor Co. Cars -> Check Fuel Cap Lamp ->
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

The Check Fuel Cap Lamp will illuminate momentarily when the ignition switch is placed in the On position as a bulb check. If the lamp remains...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Reposition heater hose inlet clamp at heater core.
  • Remove heater inlet hose from heater core.
  • Reposition heater core inlet hose clamp at engine.
  • Remove hose from engine.
  • Remove hose from vehicle.
  • Reverse procedure to in...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

  • Rotate tensioner away from belt using a breaker bar installed in 1/2 inch square hole in tensioner arm.
  • Lift old belt over alternator pulley...

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COMPONENT LOCATION DIAGRAMS FOR 1998 Mercury Grand Marquis AUTOMOBILES

Component location diagrams for most 1998 Mercury Grand Marquis cars and light trucks sold in the U.S. from 1990+.

Body Components Diagram for 1998 Mercury Grand Marquis  4.6 V8 GASBody Components Diagram for 1998 Mercury Grand Marquis 4.6 V8 GAS

Components on diagram:
  • Subwoofer Amplifier
  • Trunk Release Solenoid/Ajar Switch
  • CD Changer
  • High Mount Stoplamp
  • Brake Pedal Position Switch
  • Body Components Diagram for 1998 Mercury Grand Marquis  4.6 V8 GASBody Components Diagram for 1998 Mercury Grand Marquis 4.6 V8 GAS

    Components on diagram:
  • Connector C-419
  • Connector C-414
  • Connector C-416
  • Connector C-417
  • Connector C-420
  • CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1998 Mercury Grand Marquis AUTOMOBILES

    OEM drawn wiring diagrams for most 1998 Mercury Grand Marquis cars and light trucks sold in the U.S.

    1998 Mercury Grand Marquis  4.6 V8 GAS Wiring Diagram1998 Mercury Grand Marquis 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Speed Sensor (VSS)
  • Air Suspension/EVO Steering Module
  • Electronic Variable Orifice (EVO) Steering Module
  • 1998 Mercury Grand Marquis  4.6 V8 GAS Wiring Diagram1998 Mercury Grand Marquis 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • Drivers Power Lumbar Compressor
  • Drivers Lumbar Switch
  • Drivers Lumbar Air Bladder
  • CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1998 Mercury Grand Marquis AUTOMOBILES

    OEM TSB listings for most 1998 Mercury Grand Marquis cars and light trucks sold in the U.S. from 1985+.

    Document: CUSTOMER SATISFACTION PROGRAM - UPGRADE MODIFICATIONS FOR HIGH-SPEED REAR IMPACTS - WISCONSIN & CONNECTICUT ONLY
    Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

    Auto Systems:
  • Brakes, Power Brakes, Traction Control
  • Steering, Suspension
  • Finishes, Body Structure, Frame, Bumpers
  • Document: SAFETY RECALL - SPEED CONTROL SYSTEM MODIFICATION
    Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

    Auto Systems:
  • Instruments, Dash Cluster, Warning Lights, Mirrors
  • CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1998 Mercury Grand Marquis AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 Mercury Grand Marquis 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 1998 Mercury Grand Marquis 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 1998 Mercury Grand Marquis 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 1998 Mercury Grand Marquis 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 1998 Mercury Grand Marquis SPECIFICATIONS DATA!

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    Click here to view more details about 2000 Mercury Grand Marquis Engine Harmonic Balancer2000 Mercury Grand Marquis Engine Harmonic Balancer, A high quality, direct fit OE replacement harmonic balancer; With limited lifetime warranty..

    Source: Auto Body Parts Store

    $15.86

    Click here to view more details about 2001 Mercury Grand Marquis Mirror, Passenger Side2001 Mercury Grand Marquis Mirror, Passenger Side, This OE replacement mirror is primered and made of the highest quality, rust and corrosion resistant materials to withstand all types of weather. Item is backed by 2-year Kool Vue limited warranty.</p><p><b><i>Specifications</i></b>:<ul><li type="circle">6-hole, 3-prong connector</li></ul></p><p><b>Kool Vue</b> specializes in producing mirrors for all vehicle makes and models; our mirrors go through rigorous testing that includes 35,000 hours of Weather Testing, 500 Swing Tests and Impact, Pull Tension, Reflection and Vibration testing to make sure you purchase the highest quality mirrors. You can't go wrong with Kool Vue Mirrors!</p>.

    Source: Auto Body Parts Store

    $53.18

    Click here to view more details about 2007 Mercury Grand Marquis 16" x 7" Alloy Wheel2007 Mercury Grand Marquis 16" x 7" Alloy Wheel, Alloy Wheel; 16 X 7; 45MM Offset; 9 Y Spokes; 5 Lug; 4.5 Inch BP; Machined And Silver, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $117.50

    Click here to view more details1982 Mercury Grand Marquis V8, 4.2 L, 255 CID Rebuilt Engine, Rear Dipstick, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,420.00

    Click here to view more details2003 Mercury Grand Marquis Used Upper Control Arm, Driver Side, 4.6, AUTO, RWD L, L., Very Good.

    Source: Used Auto Parts Store

    $66.00

    Click here to view more details2002 Mercury Grand Marquis Used Rear View Mirror, Elctrchrmatic, w/Compass, w/Temp, Very Good.

    Source: Used Auto Parts Store

    $72.00
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