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1990 Nissan D21 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Nissan REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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

A/C & HEATER SERVICE PROCEDURES FOR 1990 Nissan D21 Pickup AUTOMOBILES
A/C & Cooling System Maintenance -> Nissan -> 1990-2002
Vehicle: 1990 Nissan D21 Pickup 3.0 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Nissan D21 Pickup AUTOMOBILES
NISSAN, DISC BRAKES -> REAR DISC BRAKE SERVICE -> AD14VB & OPZ11VB TYPE -> Brake Pad, Replace -> Caliper Overhaul -> Caliper, Overhaul -> Caliper, Replace -> EXCEPT AD14VB & OPZ11VB TYPE
Vehicle: 1990 Nissan D21 Pickup 3.0 V6 GAS
EXCEPT AD14VB & OPZ11VB TYPE
Brake Pad, Replace
- Raise and support rear of vehicle and remove wheel.
- Disconnect parking brake cable and remove spring retainer, if necessary.
- On 240SX and 1990 Stanza models, disconnect parking cable stay fixing bolt and lock spring.
- On all models, remove pin bolts, Figs. through .
- Remove pad springs, pads and pad shims.
- Reverse procedure to install. Turn piston clockwise to retract it into cylinder body.
Caliper, Replace
- Disconnect parking brake cable and brake hose.
- Remove caliper attaching bolts, then the caliper from vehicle.
- Reverse procedure to...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Nissan D21 Pickup AUTOMOBILES
Nissan/Datsun -> Component Locations -> 1986-95 Pathfinder & Pickup w/3.0L Engine
Vehicle: 1990 Nissan D21 Pickup 3.0 V6 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Nissan D21 Pickup AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 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 1990 Nissan D21 Pickup AUTOMOBILES
Alternator, Replace
Vehicle: 1990 Nissan D21 Pickup 2.4 L4 GAS
- Remove engine undercover.
- Remove drive belt from alternator.
- Disconnect harness co...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Nissan D21 Pickup AUTOMOBILES
Nissan -> Traction Control/Slip Indicator Lamp ->
Vehicle: 1990 Nissan D21 Pickup 3.0 V6 GAS
Drive wheel slippage is detected by the four wheel rotating signal. When wheel slip becomes excessive, the Traction Control System (TCS) operates causing the SLIP indicator lamp to illuminate. When the TCS off switch is used to cancel TCS function, the ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Nissan D21 Pickup AUTOMOBILES
Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 1990 Nissan D21 Pickup 2.4 L4 GAS
Inlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at heater core.
- Remove hose from heater core.
- Reposition hose clamp at cylinder head.
- Remove hose from cylinder head.
- Remove hose from vehicle.
- Reverse procedure to install.
Outlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at heater c...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Nissan D21 Pickup AUTOMOBILES
Component location diagrams for most 1990 Nissan D21 Pickup cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Nissan D21 Pickup AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Nissan D21 Pickup cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Nissan D21 Pickup AUTOMOBILES
OEM TSB listings for most 1990 Nissan D21 Pickup cars and light trucks sold in the U.S. from 1985+.
Document: A/C SYSTEM O-RING SEAL LEAKS Vehicle: 1990 Nissan D21 Pickup 3.0 V6 GAS Auto Systems: |
Document: WINDSHIELD CRACKING Vehicle: 1990 Nissan D21 Pickup 3.0 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Nissan D21 Pickup AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 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 1990 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 1990 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 1990 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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