1988 Nissan D21 Owners Manual

The 1988 Nissan D21 is a compact pickup truck featuring reliable performance, durable construction, and versatile utility. This manual covers essential information for proper operation, maintenance, and troubleshooting of your vehicle. Below are key sections covering features, operation, maintenance, specifications, and troubleshooting.

1. Features at a Glance 2. Vehicle Operation 3. Instrument Panel 4. Specifications 5. Controls and Features 6. Maintenance Schedule 7. Driving Tips 8. Safety Features 9. Care & Maintenance 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: Reliable engine performance, durable chassis, comfortable cab interior, and versatile cargo bed.

Feature	Description
Engine	2.4L 4-cylinder gasoline engine
Transmission	5-speed manual or 3-speed automatic
Payload Capacity	Up to 1,400 lbs depending on configuration
Fuel System	Carburetor or fuel injection (depending on model)
Braking System	Front disc brakes, rear drum brakes
Suspension	Independent front suspension, leaf spring rear
Bed Dimensions	6-foot cargo bed with tie-down hooks
Fuel Capacity	15.9 gallon fuel tank
Towing Capacity	Up to 2,000 lbs when properly equipped
Cab Options	Regular cab and King Cab configurations

Vehicle Operation

Familiarize yourself with basic vehicle operation before driving.

Starting the engine: Insert key, depress clutch (manual), turn to start position.
Shifting gears: Use clutch pedal for manual transmission; select appropriate gear.
Braking: Apply brakes smoothly; use parking brake when stationary.
Steering: Power steering provides easy maneuverability.

WARNING! Always wear seat belts. Never operate vehicle under the influence of alcohol or drugs.

Instrument Panel

The instrument panel provides essential vehicle information and warning indicators.

Speedometer: Shows vehicle speed in mph and km/h.
Tachometer: Indicates engine RPM (manual transmission models).
Fuel Gauge: Displays fuel level in tank.
Temperature Gauge: Monitors engine coolant temperature.
Warning Lights: Oil pressure, battery charge, brake system.

CAUTION! Respond immediately to warning lights. Stop vehicle if temperature or oil pressure warnings activate.

Specifications

Engine: 2.4L Z24i 4-cylinder
Horsepower: 106 hp @ 4,800 rpm
Torque: 137 lb-ft @ 2,800 rpm
Transmission: 5-speed manual or 3-speed automatic
Drivetrain: Rear-wheel drive
Wheelbase: 104.3 inches (regular cab), 116.1 inches (King Cab)
Length: 174.8 inches (regular cab), 186.6 inches (King Cab)
Curb Weight: 2,800-3,100 lbs depending on configuration
Fuel Economy: 18-22 mpg city, 22-26 mpg highway

Controls and Features

Main controls: Steering wheel, gear shift, pedals, parking brake, instrument panel.

Interior Features: AM/FM radio, heater/defroster, ventilation system, ashtray, glove compartment.

Exterior: Headlights, turn signals, hazard lights, windshield wipers/washer. Maintenance: Oil change indicator, service intervals, fluid level checks. Safety: Seat belts, head restraints, door locks, child safety features.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Every 3,000 miles: Change engine oil and filter
Every 7,500 miles: Rotate tires, check brake system
Every 15,000 miles: Replace air filter, check spark plugs
Every 30,000 miles: Replace fuel filter, check timing belt
Every 2 years: Replace brake fluid and coolant

Tip: Keep maintenance records for warranty and resale value.

Driving Tips

Optimize performance and fuel efficiency with proper driving techniques.

Accelerate smoothly: Avoid rapid acceleration and hard braking.
Maintain proper tire pressure: Check monthly for optimal fuel economy.
Use appropriate gear: Shift at recommended RPM ranges.
Reduce weight: Remove unnecessary items from bed and cab.
Plan routes: Combine trips to minimize cold starts.

WARNING! Never exceed payload or towing capacities. Distribute load evenly in cargo bed.

Safety Features

Seat Belts: Three-point lap/shoulder belts for all seating positions. Braking System: Dual-circuit hydraulic brakes with warning light. Lighting: Headlights, parking lights, turn signals, brake lights, hazard flashers.

Care & Maintenance

Regular cleaning and inspection maintains appearance and function.

Exterior: Wash regularly with automotive soap; wax every 3-6 months. Interior: Vacuum carpets; clean upholstery with appropriate cleaners. Engine: Keep engine compartment clean; check for leaks regularly.

CAUTION! Use only automotive-grade cleaning products. Avoid high-pressure water in engine compartment.

Warranty Information

Basic Warranty: 12 months/12,000 miles. Powertrain Warranty: 36 months/36,000 miles. Corrosion Warranty: 60 months/unlimited mileage. For warranty service, contact authorized Nissan dealership. Keep all maintenance records for warranty claims.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Battery, fuel, ignition	Check battery connections; ensure fuel in tank; verify spark plug function.
Poor fuel economy	Tire pressure, maintenance	Check tire pressure; replace air filter; verify proper wheel alignment.
Overheating	Coolant level, thermostat	Check coolant level; inspect radiator and hoses; test thermostat.
Brake problems	Fluid, pads, adjustment	Check brake fluid level; inspect brake pads; adjust parking brake.
Electrical issues	Battery, alternator, fuses	Test battery and alternator; check fuses and electrical connections.

Service: Contact authorized Nissan dealership for professional service and genuine parts.

Emergency: For roadside assistance, contact Nissan Customer Service.