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1990 Mercury Topaz 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 1990 Mercury Topaz 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 Topaz automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
A/C & Cooling System Maintenance -> Ford Motor Co. -> 1990-2002 Ford Escort,Tempo, ZX2 & Mercury Topaz & Tracer
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
POWER BRAKES, FORD MOTOR CO. -> POWER BOOSTER REPLACEMENT -> 2.3L/4-140 Engine -> 3.8L/V6-232 & 5.0L/V8-302 Engines -> 5.0L/V8-302 Engine -> CAPRI, PROBE, 1991 ESCORT & TRACER -> COUGAR & THUNDERBIRD -> CROWN VICTORIA, GRAND MARQUIS, TEMPO, TOPAZ & 1989-90 ESCORT -> FESTIVA & 1989 TRACER -> Installation -> MUSTANG -> Removal -> SABLE & TAURUS -> TOWN CAR -> XR4Ti
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
CROWN VICTORIA, GRAND MARQUIS, TEMPO, TOPAZ & 1989-90 ESCORT
- Disconnect battery ground cable.
- Disconnect master cylinder from booster and position aside.It is not necessary to disconnect brake lines, but care should be taken to avoid twisting or kinking lines.
- Disconnect manifold vacuum hose from booster check valve.
- Working under instrument panel, disconnect stop lamp switch electrical connector under instrument panel.
- Remove stop lamp switch retaining pin. Slide switch off brake pedal pin enough so outer plate of switch clears the pin, then remove switch from pin.
- Remove b...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
Ford Motor Co. Passenger Cars -> Fuel Pressure Relief -> Except Aspire, Festiva, Focus, Fusion, Milan, 2003-06 Crown Victoria, Grand Marquis, Sable, Taurus & Town Car, 1991-96 Escort, 1988-96 Tracer, 1991-94 Capri, 1989-91 Probe & 2005-06 Mustang
Vehicle: 1990 Mercury Topaz 2.3 L4 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 proper direction...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
If removing both righthand and lefthand driveshafts, install plugs T81P-1177B, or equivalent. Failure to do so may result in dislocating of differential side gears, requiring transaxle disassembly to align gears. Also, driveshaft removal and installation procedures are the same for manual and automatic transaxles except for the following: due to automatic transaxle case configuration, righthand driveshaft assembly must be removed first. Removal tool T81P-4026-A, or equivalent, is then inserted into transaxle to remove lefthand inner CV joint assembly. If only lefthand dri...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
Alternator, Replace
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
- Disconnect battery ground cable.
- Disconnect wire harness attachments to integral alternator assembly. Pull connector straight out.
- Loosen alternator pivot bolt. Remove adjustment are bolt from alternator.
- Disengage alte...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
Ford Motor Co. Cars -> Low Coolant Lamp ->
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
The low coolant warning lamp should light whenever the coolant level in the coolant recovery bottle is 1/4 to 3/4 inch or more below the cold full mark. Raise coolant level in recovery bottle to the cold full mark to turn lamp off.
On models equipped with GEM module and low coolant level warning system, t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
- Disconnect battery ground cable.
- Drain cooling system into a suitable container.
- Loosen hose clamp and disconnect upper radiator hose.
- Remove two fasteners retaining upper end of fan shroud to radiator and sight shield.
- On models with air conditioning, remove nut and screw retaining upper end of fan shroud to radiator at cross support.
- Remove nut and screw at inlet end tank.
- Disconnect air conditioning discharge line.
- On all models, disconnect cooling fan motor connector.
- Remove fan shroud from vehicle.
- Loosen hose clamp and disconnect radiator lower hose from radiator.
- Disconnect overf...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Mercury Topaz AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Mercury Topaz 2.3 L4 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Mercury Topaz AUTOMOBILES
Component location diagrams for most 1990 Mercury Topaz cars and light trucks sold in the U.S. from 1990+.
 Airbag Diagnostic Module Diagram for 1990 Mercury Topaz 2.3 L4 GASComponents on diagram: |
 RH Rear Of Engine Diagram for 1990 Mercury Topaz 2.3 L4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1990 Mercury Topaz AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Mercury Topaz cars and light trucks sold in the U.S.
 1990 Mercury Topaz 2.3 L4 GAS Wiring DiagramComponents on diagram: |
 1990 Mercury Topaz 2.3 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Mercury Topaz AUTOMOBILES
OEM TSB listings for most 1990 Mercury Topaz cars and light trucks sold in the U.S. from 1985+.
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Document: WHINING / BUZZING NOISE COMES THROUGH ENTERTAINMENT OR TWO-WAY RADIO SPEAKER Vehicle: 1990 Mercury Topaz 2.3 L4 GAS Symptoms: |
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Document: FORD MOTOR COMPANY POSITION ON PROPYLENE GLYCOL-BASED ENGINE COOLANTS Vehicle: 1990 Mercury Topaz 2.3 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Mercury Topaz AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Mercury Topaz 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 Topaz 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 Topaz 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 Topaz 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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