Repairing 1991 Nissan D21 Pickup Automobiles? Access Complete DIY repair procedures (Charts, Diagrams, Procedures, Specifications)

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1991 Nissan D21 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Nissan REPAIR SHOPS DON'T WANT YOU TO KNOW

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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Nissan D21 Pickup car and truck repair procedures including Nissan 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 Nissan D21 Pickup 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 Nissan 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 Nissan D21 Pickup 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 Nissan D21 Pickup AUTOMOBILES

Nissan -> MANUAL AIR CONDITIONING & HEATER SYSTEM DIAGNOSIS & TESTING -> A/C COMPONENT DIAGNOSIS & TESTING -> 240SX -> 300ZX -> A/C RELAY -> A/C SWITCH -> AMBIENT SWITCH -> BLOWER RESISTOR -> DUAL PRESSURE SWITCH -> ENGINE TEMPERATURE SWITCH -> FAN SWITCH -> FAST IDLE CONTROL DEVICE -> Maxima -> Maxima & 240SX -> NX Coupe, NX1600, NX2000 & Sentra -> Pathfinder & Pickup -> Stanza -> THERMAL PROTECTOR -> THERMO CONTROL AMPLIFIER
Vehicle: 1991 Nissan D21 Pickup SE 3.0 V6 GAS

Components described may be found in both manual A/C and Automatic Temperature Control systems. Refer to "Automatic Temperature Control" system for diagnosis and testing of components unique to that system. Refer to the appropriate vacuum hose routing schematic(s) and/or wiring diagram for additional information.

A/C RELAY

Check continuity as shown in Fig. .

A/C SWITCH

Maxima & 240SX

Check continuity between terminals as shown in Fig. .

NX Coupe, NX1600, NX2000 & Sentra

Check continuity between terminals as shown in Fi...

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BRAKE SERVICE PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

NISSAN, POWER BRAKE UNITS -> OUTPUT ROD ADJUSTMENT
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

Do not adjust output rod on the 1990 Sentra.

Apply 19.96 inch HG of vacuum to brake booster using a suitable vacuum pump, Fig. .
Check output rod length as s...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

Nissan/Datsun -> Fuel Filter Replacement -> Except Armada, Murano, Titan & 350Z, 2006-02 Altima, 2000-06 Maxima & Sentra -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 1991 Nissan D21 Pickup SE 3.0 V6 GAS

Fuel System Pressure Relief

On all models except 1990-96 300ZX, remove the fuel pump fuse from the fuse panel.
On 1990-96 300ZX, disconnect the fuel pump relay, located behind the lefthand side kick panel.
On all models, start and run the engine until it stalls.
After the engine stalls, crank two or three times to ensure all fuel pressure is relieved.
On all models except 1990-96 300ZX, turn the ignition Off, then install the fuel pump fuse.
On 1990-96 300ZX, turn the ignition Off, then connect the fuel pump relay.

Removal &...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

Raise and support vehicle, then remove wheel.
Unfasten brake caliper assembly, leaving brake line attached.
Remove hub nut.
Remove tie-rod ball joint from knuckle, then separate driveshaft from steering knuckle by tapping on driveshaft. When removing driveshafts, cover boots with cloth to prevent damage.
On models with automatic transaxle, if replacing both dr...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

Alternator, Replace
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

Remove engine undercover.
Remove drive belt from alternator.
Disconnect harness co...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

Nissan -> All Wheel Drive (AWD) Warning Lamp ->
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

When the ignition switch is placed in the on position, the AWD warning lamp will light as a bulb check but should go off soon after the engine is started. If a malfunction in the AWD system exist or if fr...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 Nissan D21 Pickup SE 3.0 V6 GAS

Lower

Disconnect battery ground cable.
Drain cooling system into a suitable container by loosening drain plug of radiator.
Reposition hose clamp at radiator outlet.
Remove hose from radiator.
Reposition hose clamp at thermostat housing.
Remove hose from thermostat housing.
Remove hose from vehicle.
Reverse proc...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Nissan D21 Pickup AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

Loosen lock nut on power steering pump.
Loosen adjusting bolt on power steering pump.
Remove power steering pump drive belt.
Loosen pulley bolt on idler pulley.
Loosen adjusting bolt on idler pulley.
Remove air conditioning compressor drive belt.
Loosen loc...

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COMPONENT LOCATION DIAGRAMS FOR 1991 Nissan D21 Pickup AUTOMOBILES

Component location diagrams for most 1991 Nissan D21 Pickup cars and light trucks sold in the U.S. from 1990+.

Luggage Compartment Components Diagram for 1991 Nissan D21 Pickup 2.4 L4 GAS

Components on diagram:

Door Lock Timer

Rear Wiper Amplifier

A.S.C.D. Control Unit

Rear Defogger Relay

A/T Control Unit

Main Harness (Passenger Compartment) Diagram for 1991 Nissan D21 Pickup SE 3.0 V6 GAS

Components on diagram:

Ground G-305M

Ground G-232M

Ground G-202M

Ground G-275M

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WIRING DIAGRAMS FOR 1991 Nissan D21 Pickup AUTOMOBILES

OEM drawn wiring diagrams for most 1991 Nissan D21 Pickup cars and light trucks sold in the U.S.

1991 Nissan D21 Pickup SE 3.0 V6 GAS Wiring Diagram

Components on diagram:

Ignition Switch

Blower Relay

Compressor

Thermistor

Blower Motor

1991 Nissan D21 Pickup 3.0 V6 GAS Wiring Diagram

Components on diagram:

Battery

Ignition Switch

Alternator

Charge

Bulb Check Relay

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TECHNICAL SERVICE BULLETINS FOR 1991 Nissan D21 Pickup AUTOMOBILES

OEM TSB listings for most 1991 Nissan D21 Pickup cars and light trucks sold in the U.S. from 1985+.

Document: A/C SYSTEM O-RING SEAL LEAKS
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

Auto Systems:

Heating, A/C, Ventilation, Defogger

Document: WINDSHIELD CRACKING
Vehicle: 1991 Nissan D21 Pickup 3.0 V6 GAS

Auto Systems:

Glass, Doors, Hood, Decklid, Tailgate, Liftgate, Locks

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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Nissan D21 Pickup AUTOMOBILES

BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Nissan D21 Pickup 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 Nissan D21 Pickup 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 Nissan D21 Pickup 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 Nissan D21 Pickup 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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