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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!
    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 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 XR-7 3.8 V6 GAS

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

    POWER BRAKES, FORD MOTOR CO. -> CHECKING COMPLAINTS
    Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

    Complaints about power brake operation should be handled as if two separate systems exist. Check for faults in the hydraulic system first. If it is satisfactory, start inspecting the power brake circuit. For a quick check of proper power unit operation, press the brake pedal firmly and then start the engine. The pedal should fall away slightly and less pressure should be needed to maintain the pedal in any position.

    Another check begins with installation of a suitable pressure gauge in the brake hydraulic system. Take a reading with the engine off and the power unit not opera...

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar BRAKE SERVICE PROCEDURES

    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 LS 3.8 V6 GAS

    The inertia switch ...

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar FUEL FILTER REPLACEMENT PROCEDURES

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

    DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
    Vehicle: 1990 Mercury Cougar LS 3.8 V6 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 1990 Mercury Cougar DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

    Ford Motor Co. Cars -> Check Engine Lamp/Malfunction Indicator Lamp (MIL)/Service Engine Soon Lamp -> 1990-94 Models w/EEC-IV
    Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

    This lamp should light when the ignition is turned On. After the engine is started, the lamp should go off, unless a fault condition is detected by the EEC-IV system. Following diagnosis and repair, the Check Engine/MIL lamp will automatically reset when the stored codes are cleared from the EEC-IV system memory. After diagnosis and repair, the EEC-IV memory may be cleared of stored codes as follows:

    • With ignition turned Off, connect a jumper wire between Self Test and Self Test Input (STI) connectors, Fig. . On Crown Victoria, Grand Marquis and Town Car models, the...

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

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

    • Disconnect battery ground cable.
    • Drain cooling system into a suitable container.
    • Disconnect coolant recovery hose at radiator.
    • Remove two shroud upper retaining screws and lift shroud out of lower retaining clip.
    • Disconnect cooling fan wiring harness connectors.
    • Remove fan and shroud from vehicle.
    • On models with automatic transaxles, disconnect and plug transmission oil cooler lines.
    • On all models, remove two hex nuts from righthand radiator support bracket and remove bracket.
    • Remove two screws ...

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Mercury Cougar AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1990 Mercury Cougar XR-7 3.8 V6 GAS

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

    CLICK HERE TO GET FULL ACCESS TO 1990 Mercury Cougar SERPENTINE BELT SERVICE PROCEDURES

    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+.

    I/P Components  Diagram for 1990 Mercury Cougar XR-7 3.8 V6 GASI/P Components Diagram for 1990 Mercury Cougar XR-7 3.8 V6 GAS

    Components on diagram:
  • Warning Chime Module
  • Vehicle Maintenance Monitor Module
  • Steering Sensor
  • LCD Illumination Relay
  • Starter Interrupt Relay
  • Body & Chassis Components  Diagram for 1990 Mercury Cougar XR-7 3.8 V6 GASBody & Chassis Components Diagram for 1990 Mercury Cougar XR-7 3.8 V6 GAS

    Components on diagram:
  • Variable Assist Power Steering Module
  • Soft Ride Relay
  • Inertia Switch
  • Park Brake Switch
  • Electronic Control Assembly
  • 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:
  • Right Cornering Lamp
  • Main Light Switch
  • Left Cornering Lamp
  • Multi-Function Switch
  • Right Front Park Turn Lamp
  • 1990 Mercury Cougar LS 3.8 V6 GAS Wiring Diagram1990 Mercury Cougar LS 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Trunk Lid Release Switch
  • Trunk Lid Release Solenoid
  • 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 details about 1997 Mercury Cougar Radiator1997 Mercury Cougar Radiator, 22.37 x 18.37 x 1 in. core size, 1.5 in. inlet size, 1.5 in. outlet size, 1.19 x 18.5 in. top header, 3 x 18.5 in. bottom header, plastic tanks, Without engine oil cooler; A high quality, OE replacement radiator; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $153.48

    Click here to view more details about 1997 Mercury Cougar Bumper Reinforcement, Front1997 Mercury Cougar Bumper Reinforcement, Front, A High Quality, Direct Fit OE Replacement For Bumper Reinforcement.

    Source: Auto Body Parts Store

    $52.68

    Click here to view more details about 2002 Mercury Cougar 16" x 6.5" Alloy Wheel Take-Off2002 Mercury Cougar 16" x 6.5" Alloy Wheel Take-Off, Alloy Wheel; 16 X 6.5; 6 Spokes; 4 Lug; 4.25 Inch BP; NO Cougar Emblem On Face; All Painted Silver, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $100.45

    Click here to view more details about 1985 Mercury Cougar V8, 5 L, 302 CID Rebuilt Engine1985 Mercury Cougar V8, 5 L, 302 CID Rebuilt Engine, Crank #2MAE or R1J, Smog not HO., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,297.00

    Click here to view more details2000 Mercury Cougar Used Air Flow Meter/Sensor, 6 CYL, ID F6DF-EA, Very Good.

    Source: Used Auto Parts Store

    $69.00

    Click here to view more details1993 Mercury Cougar Used A/C Compressor, 8-302 (5.0L), Very Good.

    Source: Used Auto Parts Store

    $125.00
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