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1990 Mazda RX-7 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Mazda 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!Select Section
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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 Mazda RX-7 car and truck
repair procedures including Mazda 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 Mazda RX-7 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
A/C & Cooling System Maintenance -> Mazda -> 1990-2002 Miata, Millenia, Protege, 323, MX-3, MX-6, 626, RX-7 & 929
Vehicle: 1990 Mazda RX-7 GXL 1.3 R2 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
Anti-Lock Brakes -> COMPONENT TESTING -> 1990-91 MX-6 & 626 -> 1992 MX-6 & 626 -> 929 -> ABS Diode -> ABS Fail Safe Relay -> ABS Motor Relay -> ABS Relay -> ABS Warning Light -> Anti-Lock Warning Light -> Brake Light Switch -> Check Motor At Hydraulic Unit -> Check Solenoid Valve A Hydraulic Unit -> Checking ABS System -> Control Unit -> Front & Rear Valves -> Hydraulic System -> Left Front & Rear Valves -> MIATA -> Motor Relay -> MPV, B2200 & B2600i -> MX-3 -> Pressure Differential Switch -> Pump Motor -> Relay Box -> RX-7 -> Sensor Rotor -> System Ground -> Valve Relay -> Voltage Check Of Wheel Speed Sensor -> Wheel Speed Sensor
Vehicle: 1990 Mazda RX-7 U 1.3 R2 GAS
MIATA
System Ground
Check for open circuit in terminals 1D, 1S and 2F of control unit connector and ground, Fig. .
Anti-Lock Warning Light
- Remove instrument cluster.
- Connect 12 volts to terminal 2K and ground to terminal 1K, Fig. .
- Ensure ABS warning light glows.
- If light does not glow, check meter fuse, bulb and wiring harness.
- If light glows, check wiring harness to control unit or hydraulic unit. Repair or replace as necessary.
ABS Diode
- Check meter fuse and bulb, then the wiring harness to control unit or hydraulic unit.
- Disconnect hydraulic unit 12 pin connector.
- Using ohmmeter, ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
Mazda -> Fuel Filter Scheduled Maintenance -> 1988-00 -> Normal Service -> Severe Service
Vehicle: 1990 Mazda RX-7 1.3 R2 GAS
Normal Service
Replace every 60,000 m...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 Mazda RX-7 GXL 1.3 R2 GAS
- Raise and support vehicle, then remove wheel and tires.
- Remove splash shield, then transaxle drain plug.
- Raise staked portion of driveshaft locknut using suitable tool.
- Apply brakes, then loosen and remove locknut.
- Remove stabilizer, then tie rod ends using tool No. 490118850C or equivalent.
- Remove lower ball joint attaching bolt.
- Remove driveshaft clinch bolt and nut, pry down on lower arm to disconnect ball joint.On vehicles equipped with autom...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
Starter, Replace
Vehicle: 1990 Mazda RX-7 1.3 R2 GAS
- Disconnect battery ground cable.
- Disconnect battery ground cable from battery, then raise and support vehicle.
- Remove starter motor bracket and different...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
Mazda -> Traction Control System Warning Lamp ->
Vehicle: 1990 Mazda RX-7 U 1.3 R2 GAS
This lamp should light for approximately 6-8 seconds when the ignition is turned to On position as a bulb check. If the ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Mazda RX-7 1.3 R2 GAS
- Disconnect negative cable from battery.
- Drain coolant into a suitable container.
- Remove resonance chamber No. 1 from radiator.
- Remove fresh air duct from radiator.
- Disconnect cooling fan motor connector.
- Remove overflow hose from radiator.
- Remove radiator upper hose.
- Remove radiator lower hose.
- On models with automatic transaxle, remove two transaxle oil cooler hoses.
- On all models, remove t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Mazda RX-7 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Mazda RX-7 U 1.3 R2 GAS
- Loosen alternator pivot bolt.
- Loosen adjuster lock nut.
- Loosen adjustment bolt and relieve belt tension.
- Remove drive belt.
- Re...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Mazda RX-7 AUTOMOBILES
Component location diagrams for most 1990 Mazda RX-7 cars and light trucks sold in the U.S. from 1990+.
 Manual Transmission Components Diagram for 1990 Mazda RX-7 1.3 R2 GASComponents on diagram: |
 Relay Locations Diagram for 1990 Mazda RX-7 GXL 1.3 R2 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1990 Mazda RX-7 AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Mazda RX-7 cars and light trucks sold in the U.S.
 1990 Mazda RX-7 1.3 R2 GAS Wiring DiagramComponents on diagram: |
 1990 Mazda RX-7 GXL 1.3 R2 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Mazda RX-7 AUTOMOBILES
OEM TSB listings for most 1990 Mazda RX-7 cars and light trucks sold in the U.S. from 1985+.
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Document: STAINS APPEAR ON WHEELS Vehicle: 1990 Mazda RX-7 1.3 R2 GAS Auto Systems: |
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Document: BATTERY MAINTENANCE - SERVICE TIP Vehicle: 1990 Mazda RX-7 1.3 R2 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Mazda RX-7 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Mazda RX-7 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 Mazda RX-7 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 Mazda RX-7 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 Mazda RX-7 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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