1987 Toyota 4x4 Maintenance Manual

The 1987 Toyota 4x4 Maintenance Manual provides comprehensive guidance for maintaining and servicing your Toyota 4x4 truck. This manual covers routine maintenance procedures, troubleshooting common issues, specifications, and repair instructions for the 1987 model year Toyota 4x4 vehicles. Below are key sections covering maintenance schedules, engine care, transmission, suspension, electrical systems, and troubleshooting.

1. Maintenance Schedule 2. Engine Maintenance 3. Transmission & Drivetrain 4. Suspension & Steering 5. Brake System 6. Electrical System 7. Fuel System 8. Cooling System 9. Specifications 10. Troubleshooting

Maintenance Schedule

Follow this maintenance schedule to ensure optimal performance and longevity of your 1987 Toyota 4x4.

IntervalService Required
Every 3,000 milesOil and filter change
Every 6,000 milesRotate tires, inspect brakes
Every 12,000 milesReplace air filter, check spark plugs
Every 30,000 milesReplace fuel filter, inspect timing belt
Every 60,000 milesReplace timing belt, check transmission fluid

Engine Maintenance

Proper engine maintenance is crucial for reliable performance.

  1. Oil Change: Drain old oil, replace filter, refill with 5W-30 oil.
  2. Spark Plugs: Inspect and replace if worn; gap to 0.044 inches.
  3. Air Filter: Replace when dirty to maintain fuel efficiency.
  4. Timing Belt: Inspect for wear; replace at recommended intervals.

WARNING! Always disconnect battery before working on engine components.

Transmission & Drivetrain

Maintain transmission and 4WD system for smooth operation.

  1. Transmission Fluid: Check level regularly; replace every 30,000 miles.
  2. Transfer Case: Lubricate and inspect for leaks.
  3. Differentials: Change fluid every 15,000 miles under heavy use.
  4. U-Joints: Grease every 3,000 miles; inspect for wear.

CAUTION! Use only recommended transmission fluids.

Suspension & Steering

Brake System

Regular brake maintenance ensures safety and performance.

Components: Disc brakes (front), drum brakes (rear), master cylinder, brake lines.

Inspection: Check pad/shoe wear, rotor/drum condition, fluid level. Replacement: Replace pads/shoes when worn; bleed system if spongy.

Electrical System

Battery, alternator, starter maintenance procedures.

  1. Battery: Clean terminals; check voltage (12.6V fully charged).
  2. Alternator: Test output; replace if below 13.5V.
  3. Starter: Inspect connections; test solenoid operation.
  4. Lights: Check all bulbs; inspect wiring for damage.

Tip: Disconnect negative terminal first when working on electrical system.

Fuel System

Maintain fuel system for optimal engine performance.

  1. Fuel Filter: Replace every 12,000 miles.
  2. Fuel Pump: Test pressure (35-40 psi).
  3. Carburetor: Adjust mixture and idle speed.
  4. Fuel Lines: Inspect for leaks or damage.

WARNING! Work in well-ventilated area; no smoking near fuel system.

Cooling System

Prevent overheating with proper cooling system maintenance.

Radiator: Check for leaks; flush every 24 months. Thermostat: Replace if engine runs too cool/hot. Hoses: Inspect for cracks; replace if soft or swollen.

Specifications

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startDead battery, faulty starterCheck battery voltage; test starter solenoid.
Rough idleDirty air filter, spark plugsReplace air filter; check spark plug gap.
4WD not engagingTransfer case linkageLubricate linkage; check vacuum lines.
Brake pedal spongyAir in lines, worn padsBleed brake system; inspect pads/shoes.
OverheatingLow coolant, thermostatCheck coolant level; replace thermostat.

Service: Contact Toyota dealership or certified mechanic for complex repairs.

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