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1990 Mercury Cougar 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 1990 Mercury Cougar 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 Cougar 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 1990 Mercury Cougar 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 1990 Mercury Cougar AUTOMOBILES

A/C & Cooling System Maintenance -> Ford Motor Co. -> 1990-2002 Ford Thunderbird & Mercury Cougar
Vehicle: 1990 Mercury Cougar LS 3.8 V6 GAS

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BRAKE SERVICE PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

POWER BRAKES, FORD MOTOR CO. -> SYSTEM SERVICE -> Assembly -> BENDIX, TEVES & DOUBLE DIAPHRAGM BOOSTER -> Disassembly -> SINGLE DIAPHRAGM BOOSTER
Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

BENDIX, TEVES & DOUBLE DIAPHRAGM BOOSTER

On Bendix, Teves and Double Diaphragm Booster type power brake units, overhaul is not required. If it has been determined that the brake booster is defective, replace power brake unit as an assembly. In some instances, the only service required is replacement of the check valve and grommet and pushrod adjustment.

SINGLE DIAPHRAGM BOOSTER

Disassembly
  • Remove brake booster from vehicle.
  • Place front shell of booster in a vise.
  • Remove clevis from valve rod and plunger assembly.
  • Remove dust boot from rear shell,Fig. , then place alignment marks on fron...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

Ford Motor Co. Passenger Cars -> Fuel Shutoff Switch Location -> 1989-90 Cougar, Thunderbird & XR-7
Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

The inertia switch ...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

DRIVESHAFT, Replace
Vehicle: 1990 Mercury Cougar LS 3.8 V6 GAS

  • Raise and support vehicle.
  • Index-mark driveshaft. Place a paint index-mark on pinion flange to driveshaft centering socket yoke.
  • Remove driveshaft-to-driveshaft pinion flange bolts.
  • Place a paint index-mark on driveshaft slip-yoke to transmissio...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

Starter, Replace
Vehicle: 1990 Mercury Cougar LS 3.8 V6 GAS

  • Disconnect battery ground cable.
  • Raise and support vehicle.
  • Disconnect starter cable, then relay connector from starter solenoid.
  • Remove starter motor mounting bolts.
  • R...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

Ford Motor Co. Cars -> Electronic Throttle Control ->
Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

Electronic throttle displays when the system has malfunctioned and the engine has defaulted to a limp-home operation. On vehicles equipped with ...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

Lower

  • Drain coolant into a suitable container.
  • Loosen hose clamp connecting hose to radiator.
  • Loosen hose clamp connecting hose to water inlet tube.
  • Remove hose from vehicle.
  • Reverse procedure t...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1990 Mercury Cougar LS 3.8 V6 GAS

  • Rotate automatic tensioner away from belt.
  • Remove old belt from pulleys.
  • Install new belt over pulleys.
  • Ensure all V-groo...

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COMPONENT LOCATION DIAGRAMS FOR 1990 Mercury Cougar AUTOMOBILES

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

Engine Compartment  Diagram for 1990 Mercury Cougar LS 3.8 V6 GASEngine Compartment Diagram for 1990 Mercury Cougar LS 3.8 V6 GAS

Components on diagram:
  • Washer Fluid Level Switch
  • TFI Ignition Module
  • Starter Relay
  • Washer Pump Motor
  • Ignition Coil
  • Engine Compartment Diagram for 1990 Mercury Cougar XR-7 3.8 V6 GASEngine Compartment Diagram for 1990 Mercury Cougar XR-7 3.8 V6 GAS

    Components on diagram:
  • Washer Fluid Level Sensor
  • Solenoid Control Valve Body
  • Starter Relay
  • Canister Purge Solenoid
  • EGR Vacuum Regulator Solenoid
  • CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1990 Mercury Cougar AUTOMOBILES

    OEM drawn wiring diagrams for most 1990 Mercury Cougar cars and light trucks sold in the U.S.

    1990 Mercury Cougar XR-7 3.8 V6 GAS Wiring Diagram1990 Mercury Cougar XR-7 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Low Speed Fan Relay
  • Electronic Engine Control (EEC) Module
  • Coolant Fan Motor
  • EEC Power Relay
  • High Speed Fan Relay
  • 1990 Mercury Cougar LS 3.8 V6 GAS Wiring Diagram1990 Mercury Cougar LS 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Warning Chime Module
  • Seat Belt Switch
  • Instrument Cluster
  • Main Light Switch
  • Shift Indicator
  • CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1990 Mercury Cougar AUTOMOBILES

    OEM TSB listings for most 1990 Mercury Cougar cars and light trucks sold in the U.S. from 1985+.

    Document: MERCON ATF IS BEING REPLACED BY MERCON V AS A SERVICE FLUID FOR SOME MANUAL TRANSMISSIONS
    Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

    Auto Systems:
  • Chemicals, Antifreeze, Additives
  • Manual Trans, Clutches, Linkage, MTX
  • Document: MERCON ATF IS BRING REPLACED BY MERCON V ATF AS A SERVICE FLUID
    Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

    Auto Systems:
  • Chemicals, Antifreeze, Additives
  • Automatic Trans, Coolers, Torque Converter
  • CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1990 Mercury Cougar AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Mercury Cougar 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 1990 Mercury Cougar 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 1990 Mercury Cougar 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 1990 Mercury Cougar 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 1990 Mercury Cougar SPECIFICATIONS DATA!

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

    Click here to view more details2000 Mercury Cougar Engine Splash Shield, Front, Made of high-density polyethylene for maximum durability and tensile strength; Built to exact OE dimensions for a precise fit; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $71.01

    Click here to view more details about 1995 Mercury Cougar Corner Light, Passenger Side1995 Mercury Cougar Corner Light, Passenger Side.

    Source: Auto Body Parts Store

    $30.18

    Click here to view more details1969 Mercury Cougar Radiator Support Assembly With Lower Crossmember, Radiator Support Assembly With Lower Crossmember, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $188.50

    Click here to view more details1982 Mercury Cougar L4, 2.3 L, 140 CID Rebuilt Engine, Turbo, carb, round intake ports, D shaped combustion chamber, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,483.00

    Click here to view more details1991 Mercury Cougar Used Condenser Assembly, \3.8, 85K.

    Source: Used Auto Parts Store

    $105.00

    Click here to view more details2002 Mercury Cougar Used Rear View Mirror, Manual mirror, Very Good.

    Source: Used Auto Parts Store

    $47.00
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