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1998 Toyota Supra CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota 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
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- 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 Toyota Supra car and truck
repair procedures including Toyota 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 Toyota Supra automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Air Bag System Precautions -> Toyota -> Disarming
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
The Supplemental Restraint System (SRS) incorporates a back up energy source that can maintain sufficient voltage to cause a deployment for up to 90 seconds after the ignition switch is turned off and the battery is disconnected.
When the battery is disconnected all vehicle memory is lost, make notes of radio station settings. Never use a back-up power source from outside the vehicle.
- Note radio station settings before disconnecting battery, as all vehicle memory will be lost.
- Place ...
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BRAKE SERVICE PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Hydraulic Brake Systems -> Component Replacement -> Except Land Cruiser & 4Runner -> Except Sienna -> Land Cruiser & 4Runner -> Master Cylinder -> Models w/Load Sensing Proportioning Valve (LSPV) -> Models w/Proportioning & Bypass Valve (P-BV) -> Proportioning Valve -> Sienna -> Wheel Cylinders
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
Master Cylinder
Except Sienna
- Remove brake fluid with syringe.
- On RAV4 models, remove air cleaner cover with air cleaner hose.
- On all models, label and disconnect brake lines using line wrench 09751-36011, 09023-00100, or equivalent. Cap brake lines from master cylinder.
- Disconnect wire connector from brake pressure switch and then disconnect level warning switch connector, if equipped.
- Remove master cylinder to brake unit attaching nuts, then remove master cylinder, wire clamp, gasket and 3-way union, as needed.
- Reverse procedure to install. Bleed brake system.
Sienna
- Remove air c...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Toyota -> Fuel Filter Replacement -> Corona, Cressida, Paseo, Starlet, Supra & Tercel -> Fuel System Pressure Relief -> Models Less Union Bolt Fuel Line Connection -> Models w/Union Bolt Fuel Line Connection -> Removal & Installation
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
Fuel System Pressure Relief
Models w/Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable, if equipped.
- Disconnect the battery ground cable.
- Remove the fuel fill cap to release fuel tank pressure.
- Place a shop towel over the union bolt at top of fuel filter. Slowly loosen the union bolt allowing fuel pressure to bleed down.
- Whenever the union bolt is loosened to relieve fuel system pressure, always replace the bolt gasket.
Models Less Union Bolt Fuel Line Connection
- Obtain t...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
- Place vehicle in neutral.
- Release parking brake.
- Raise and support vehicle and support it with safety stands in proper locations.
- Remove bolts securing oxygen sensor and heat insulator.
- Remove exhaust pipe bolts and nuts from support bracket.
- Remove two exhaust pipe support rings, O-rings, gasket and then remove exhaust pipe.
- Remove heat insulator nuts.
- Remove center floor crossmember brace bolts.
- Remove two center support bearing bolts. While removing set bolts, support center support bearing by hand so that the transmission and intermediate shaft and propeller shaft remain straigh...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Alternator, Replace
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
- Remove engine under cover.
- Remove No. 2 air tube for CAC.
- Remove No. 2 fan shroud.
- Remove drive belt tensioner damper.
- Remove drive belt.
- Disconnect alternator connector.
- Remove rubber cap and nut, and disconnect alternator wire.
- Disconnect alternator wire clamp from wire clip on alternator.
- Remove bolt and pipe clamp, and disconnect ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Toyota -> Malfunction Indicator Lamp (MIL) ->
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
On some models equipped with OBD II, the MIL will also illuminate if the fuel tank filler cap is not properly tightened. Tighten fuel tank filler cap until it clicks.
The MIL should light when the ignition switch is placed in the On position without starting the engine. When the engine is started, the lamp should go out. If it remains lit, a fault has been detected by the diagnostic system and has logged a diagnostic trouble code. If the fault does not occur again within three trips, the lamp will go out but a diagnostic tro...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Radiator, Replace
Vehicle: 1998 Toyota Supra 3.0 L6 GAS
- Remove engine under cover, Fig. .
- Remove battery and battery tray.
- Drain coolant.
- Remove No. 2 fan shroud.
- Remove air cleaner duct.
- Remove lefthand headlight beam angle gauge.
- Disconnect radiator hoses.
- On models equipped w...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 Toyota Supra AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1998 Toyota Supra 3.0 L6 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 1998 Toyota Supra AUTOMOBILES
Component location diagrams for most 1998 Toyota Supra cars and light trucks sold in the U.S. from 1990+.
Body Connector Locations Diagram for 1998 Toyota Supra 3.0 L6 GASComponents on diagram: |
I/P Connector Locations, E8 Through U1 Diagram for 1998 Toyota Supra 3.0 L6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1998 Toyota Supra AUTOMOBILES
OEM drawn wiring diagrams for most 1998 Toyota Supra cars and light trucks sold in the U.S.
1998 Toyota Supra 3.0 L6 GAS Wiring DiagramComponents on diagram: |
1998 Toyota Supra 3.0 L6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1998 Toyota Supra AUTOMOBILES
OEM TSB listings for most 1998 Toyota Supra cars and light trucks sold in the U.S. from 1985+.
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Document: REPLACEMENT CERTIFICATION LABELS - REVISED Vehicle: 1998 Toyota Supra 3.0 L6 GAS Auto Systems: |
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Document: PERMANENT-TYPE PROTECTIVE WAX COATINGS Vehicle: 1998 Toyota Supra 3.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1998 Toyota Supra AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 Toyota Supra 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 Toyota Supra 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 Toyota Supra 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 Toyota Supra 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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Body Connector Locations Diagram for 1998 Toyota Supra 3.0 L6 GAS
I/P Connector Locations, E8 Through U1 Diagram for 1998 Toyota Supra 3.0 L6 GAS
1998 Toyota Supra 3.0 L6 GAS Wiring Diagram
1998 Toyota Supra 3.0 L6 GAS Wiring Diagram
