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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!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    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

    Electric Cooling Fans -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Fan Service
    Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

    Air Bag System Disarming & Arming

    Refer to and for air bag system disarming and arming procedures.

    Battery Ground Cable

    Refer to when battery power to the computer has been interrupted.

    Prior to service, disconnect battery ground cable and isolate as required.

    Fan Service

    Do not operate engine until fan has first been inspected for crack...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

    Anti-Lock Brakes -> Continental, Crown Victoria, Grand Marquis, Sable, Taurus & Town Car -> Troubleshooting -> Pre-Test Checks
    Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

    Pre-Test Checks

    • Verify parking brake is completely released. If parking brake is applied, "Brake" lamp will be illuminated.
    • Check brake fluid. As fluid level drops, red "Brake" lamp will illuminate. If fluid level continues to fall, amber "Check Anti-Lock Brake" lamp will illuminate and anti-lock function will be inhibited.
    • Verify all of the following connectors are properly connected and in good operating condition:
      • 55-pin connector of the computer module.
      • 19-pin co...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

    Ford Motor Co. Passenger Cars -> Fuel Filter Replacement -> Except 2002-05 Thunderbird, 2000-06 LS, 1984-87 Escort, Tracer, Tempo & Topaz 2.0L Diesel Engine & 1984-85 Continental & Mark VI 2.4L Diesel Engine
    Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

    Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

    Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

    When installing the fuel filter, ensure the flow arrow is facing in the pro...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis FUEL FILTER REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES

    Ford Motor Co. Cars -> Traction Control System Warning Lamp ->
    Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS

    This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the warni...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis MAINTENANCE LAMP RESET PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis RADIATOR & HOSE REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis SERPENTINE BELT SERVICE PROCEDURES

    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+.

    Front Seat Connectors Diagram for 1998 Mercury Grand Marquis  4.6 V8 GASFront Seat Connectors Diagram for 1998 Mercury Grand Marquis 4.6 V8 GAS

    Components on diagram:
  • Passenger Seat Control Switch
  • Driver Seat Control Switch
  • Driver Seat Module
  • Driver Power Lumbar Compressor
  • Front Height Position Sensor
  • 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:
  • Instrument Cluster
  • Air Bag Indicator
  • Air Bag Electronic Crash Sensor
  • Front Crash Sensor
  • 1998 Mercury Grand Marquis  4.6 V8 GAS Wiring Diagram1998 Mercury Grand Marquis 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • Instrument Cluster
  • Lighting Control Module
  • Air Bag Electronic Crash Sensor
  • 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 2008 Mercury Grand Marquis Bumper Cover, Front2008 Mercury Grand Marquis Bumper Cover, Front, With license plate provision; With holes for air, fog light, and molding; CAPA certified; A high quality, direct fit OE replacement bumper cover..

    Source: Auto Body Parts Store

    $283.77

    Click here to view more details about 1997 Mercury Grand Marquis Tail Light, Driver Side1997 Mercury Grand Marquis Tail Light, Driver Side, Bulbs not included; DOT and SAE approved; A high quality, OE replacement tail light; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $110.97

    Click here to view more details2011 Mercury Grand Marquis Taillight Passenger Side, Passenger Side Tail Light Lens And Housing, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $41.50

    Click here to view more details about 1978 Mercury Grand Marquis V8, 6.6 L, 400 CID Rebuilt Engine1978 Mercury Grand Marquis V8, 6.6 L, 400 CID Rebuilt Engine, Smog in heads., Warranty: 3-Year/100,000 Mile, .

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    $1,328.00

    Click here to view more details1975 Mercury Grand Marquis Used Air Injection Pump, 6-300 (4.9L), ID E1TE-D2A, Very Good.

    Source: Used Auto Parts Store

    $115.00

    Click here to view more details2003 Mercury Grand Marquis Used Wiper Motor Front, Very Good.

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    $70.00
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