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1998 Mercury Grand Marquis CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Mercury REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- 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 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
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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
Hydraulic Brake Systems -> Component Service -> Assemble -> Disassemble -> Inspection -> Master Cylinder Overhaul -> Overhaul -> Wheel Cylinders
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
Master Cylinder Overhaul
Disassemble
- Clean outside of master cylinder thoroughly. Drain brake fluid from master cylinder.
- Remove stop bolt and pressure control valves, if equipped.
- Using a screwdriver, carefully pry up on reservoir and remove it from master cylinder body.
- Remove fluid control valve, if equipped.
- Depress primary piston and remove snap ring from retaining groove at open end of bore.
- Remove primary and secondary piston assemblies from master cylinder. If secondary piston does not come out, apply air pressure to secondary outlet port to remove.
Inspection
When disassembled...
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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
Alternator, Replace
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
- Disconnect battery ground cable.
- Remove engine appearance cover.
- Remove alternator bracket bolts.
- Disconnect alternator wiring and output cable from alternator.
- Remove serpentine belt from alternator pull...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Ford Motor Co. Cars -> Air Bag 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 Air B...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Radiator, Replace
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
- Turn lower fan shroud in upper fan shroud to allow clearance for fan shroud removal.
- Disconnect cooling fan electrical connector at righthand side of fan shroud.
- Remove radiator upper sight shield.
- Loosen fan shroud from its radiator mounting, then remove lower radiator hose from supports on fan shroud.
- Lift fan shroud and electric cooling fan assembly out of vehicle.
- Disconnect transmission oil co...
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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+.
 Engine Compartment Components Diagram for 1998 Mercury Grand Marquis 4.6 V8 GASComponents on diagram: |
 Instrument Panel Components Diagram for 1998 Mercury Grand Marquis 4.6 V8 GASComponents on diagram: |
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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 DiagramComponents on diagram: |
 1998 Mercury Grand Marquis 4.6 V8 GAS Wiring DiagramComponents on diagram: |
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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+.
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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: |
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Document: RECALL - FUSED JUMPER HARNESS REPLACEMENT FOR VEHICLES SERVICED WITH AN INCOMPATIBLE FUSED JUMPER HARNESS Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS Auto Systems: |
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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
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