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1991 Honda Prelude CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Honda 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 1991 Honda Prelude car and truck repair procedures including Honda 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 Honda Prelude 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 Honda mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1991 Honda Prelude 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 1991 Honda Prelude AUTOMOBILES

Import Compressor Service -> Sanden Compressor -> COMPRESSOR CLUTCH SERVICE -> COMPRESSOR CLUTCH INSPECTION -> COMPRESSOR CLUTCH OVERHAUL -> Except Honda -> Honda
Vehicle: 1991 Honda Prelude 2.0 SI 2.0 L4 GAS

COMPRESSOR CLUTCH INSPECTION

  • Rotate compressor pulley by hand and check for excess bearing play and drag. Replace pulley as required.
  • Apply 8 volts to the field coil and check that the armature is drawn by the rotor pulley.
  • Measure clearance between pulley and armature. If the clearance is not between .013-.026 inch for Honda models or .016-.031 for other models, the armature should be removed and correct number of shims should be installed.

COMPRESSOR CLUTCH OVERHAUL

Honda
  • Install suitable armature holder on armature ...

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BRAKE SERVICE PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

HONDA, DISC BRAKES -> REAR CALIPER OVERHAUL -> ASSEMBLY -> DISASSEMBLY
Vehicle: 1991 Honda Prelude SE 2.0 L4 GAS

DISASSEMBLY

  • Refer to Figs. through when overhauling rear calipers.
  • Remove caliper assembly from vehicle as described under "Rear Caliper Replace."
  • Remove pad spring from caliper.
  • Remove piston and piston boot while rotating piston with special tool being careful not to damage them, Fig. .
  • Remove circlip, washer, adjusting spring A and adjusting nut from piston, Fig. .
  • Remove piston seal, then install brake spring compressor tool between caliper body and spring guide, Fig. .
  • Compress adjusting spring B by turning shaft of spring compressor, then remove circlip with snap ring pli...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

Honda -> Fuel Filter Replacement -> del Sol, 1985-91 CR-X, 1985-01 Prelude, 1985-97 Accord, 1987-00 Civic, 1997-01 CR-V & 1995-97 Odyssey w/Fuel Injected Engines -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 1991 Honda Prelude SI ALB 2.1 L4 GAS

Fuel System Pressure Relief

  • 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.
  • On models less fuel filter service bolt, place a shop towel over the banjo bolt at top of fuel filter. Slowly loosen the banjo bolt one complete turn. When loosening the banjo bolt, use a backup wrench to hold the fuel filter in position.
  • On m...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 1991 Honda Prelude SI 2.1 L4 GAS

Replacement procedures for left and right driveshafts are the same.

  • Raise and support front of vehicle, then remove front wheels.
  • Drain transaxle.
  • Raise locking tab on spindle nut, then remove nut.
  • Remove self-locking nut and self-locking bolt. Replace self-locking bolt if you can easily thread a non-self-locking nut past their nylon locking inserts.
  • Remove damper fork, then cotter pin from lower arm ball joint castle nut and remove nut.
  • Install hex nut on ball joint. Ensure nut is flush with ball joint pin end, or threaded section of ball joint pin might be damaged by ball joi...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

Starter, Replace
Vehicle: 1991 Honda Prelude 2.0 SI 2.0 L4 GAS

  • Disconnect battery ground cable, then wait at least three minutes before continuing procedure.
  • Disconnect positive battery cable.
  • Remove engine wire harness.
  • Disconnect all electrical leads at starter.
  • Loosen...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

Honda -> Anti-Lock Brake System (ABS)/VSA System Warning Lamp -> 1990-96 Prelude
Vehicle: 1991 Honda Prelude SI ALB 2.1 L4 GAS

The Anti-Lock warning lamp is used to warn of a system fault. The lamp monitors the condition of the anti-lock brake system. It will be lit during engine start-up, but should go off when the self-diagnostic system determines that the system is operating properly. If the lamp remains lit, a fault in the anti-lock brake system is indicated. After diagnosis and repair of the system, the lamp may be turned off by disconnecting the ABS B2 (15 amp) fuse in the engine compartment relay panel for at least 3 seconds. The relay panel is located at the front LH side of the engine comp...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 Honda Prelude SI ALB 2.1 L4 GAS

Lower

  • Drain engine coolant into a suitable container.
  • Clean any dirt off quick connector, thermostat cover, and lower radiator hose.
  • Pull out lock by hand, then wiggle quick connector loose, and remove it from thermostat cover. Do not use any tools to remove quick connector.
  • Reposition hose ...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Honda Prelude AUTOMOBILES

Serpentine Drive Belt, Replace -> Alternator and Air Conditioning -> Power Steering
Vehicle: 1991 Honda Prelude SI 2.1 L4 GAS

Alternator and Air Conditioning

  • Disconnect battery ground cable from battery.
  • Loosen alternator pivot bolt.
  • Loosen alternator adjusting nut.
  • Push alternator inward toward engine.
  • Remove alternator and air conditioning drive belt.
  • Clean and inspect belt surfaces of all pulleys.
  • Reverse procedure to install, noting the follow...

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COMPONENT LOCATION DIAGRAMS FOR 1991 Honda Prelude AUTOMOBILES

Component location diagrams for most 1991 Honda Prelude cars and light trucks sold in the U.S. from 1990+.

Engine Compartment Components Diagram for 1991 Honda Prelude 2.0 SI 2.0 L4 GASEngine Compartment Components Diagram for 1991 Honda Prelude 2.0 SI 2.0 L4 GAS

Components on diagram:
  • Dimmer Relay
  • Igniter Unit
  • Left Retractor Motor
  • Lighting Relay
  • Right Retractor Relay
  • Main & Rear Wiring Harness Diagram for 1991 Honda Prelude SI 2.1 L4 GASMain & Rear Wiring Harness Diagram for 1991 Honda Prelude SI 2.1 L4 GAS

    Components on diagram:
  • Connector C-471
  • Connector C-477
  • Connector C-480
  • Connector C-481
  • Connector C-505
  • CLICK HERE TO GET FULL ACCESS TO 1991 Honda Prelude PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Honda Prelude AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Honda Prelude cars and light trucks sold in the U.S.

    1991 Honda Prelude SI 4WS 2.1 L4 GAS Wiring Diagram1991 Honda Prelude SI 4WS 2.1 L4 GAS Wiring Diagram

    Components on diagram:
  • Main Relay
  • EGR Valve
  • Coolant Temperature Sensor
  • Electronic Control Unit
  • Power Steering Oil Pressure Switch
  • 1991 Honda Prelude 2.0 SI 2.0 L4 GAS Wiring Diagram1991 Honda Prelude 2.0 SI 2.0 L4 GAS Wiring Diagram

    Components on diagram:
  • Radiator Fan Relay
  • Alternator
  • ABS Motor Relay
  • Fuse And Relay Box
  • ABS Failsafe Relay
  • CLICK HERE TO GET FULL ACCESS TO 1991 Honda Prelude WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Honda Prelude AUTOMOBILES

    OEM TSB listings for most 1991 Honda Prelude cars and light trucks sold in the U.S. from 1985+.

    Document: ATEQ VT55 TPMS Update Information
    Vehicle: 1991 Honda Prelude 2.0 SI 2.0 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: ED-18 Battery Analyzer Update Information
    Vehicle: 1991 Honda Prelude 2.0 SI 2.0 L4 GAS

    Auto Systems:
  • Tools, Equipment
  • CLICK HERE TO GET FULL ACCESS TO 1991 Honda Prelude TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Honda Prelude AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Honda Prelude 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 1991 Honda Prelude 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 1991 Honda Prelude 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 1991 Honda Prelude 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 1991 Honda Prelude SPECIFICATIONS DATA!

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