Isuzu›Pickup›1991›Overview/isuzu/pickup/1991/base/

1991 Isuzu Pickup

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1991 Pickup.

The 1991 Isuzu Pickup generated only seven owner complaints and two recalls, with seat belts as the most commonly reported problem area. That low complaint count places it well below the 1994 model year’s peak of 21 complaints within the 1992–1995 range, and nearly matches the 1993 year’s six complaints, the lowest in that span. This positions the 1991 model among the more reliable years of the pickup’s history, indicating a relatively trouble-free ownership experience compared to the model’s later, more problematic years.

Model year1995 1994 1993 1992 1991 1990 1989 1988 1987

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length	193.7 in
Overall width	66.5 in
Overall height	62.2 in
Wheelbase	119.3 in
Curb weight	2732 lb

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine GL-5 in the differential, GM Part No. 12377967 brake fluid.

Lubricants & capacities

Brake Fluid	GM Part No. 12377967
Differential Gear Oil	GL-5
Differential Gear Oil Capacity	3.2 Pints,
Engine Coolant	ETHYLENE GLYCOL
Power Steering Fluid	ATF
Transfer Case Fluid	5W-30
Transfer Case Fluid Capacity	3.2 Pints

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 7,500 mi.

At 7,500 mi	Driveshaft Flange Yoke (torque) · Engine Oil Filter (replace) · Universal Vehicle Operation (inspect idle speed)
Every 7,500 mi	Battery (inspect electrolyte level) · Body Latches, Locks & Hinges (inspect) · Brake Hydraulic System (inspect fluid level) · Brake Line (inspect) · CV Joint Boot (inspect) · Clutch Assembly (inspect)
At 15,000 mi	Drive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill)
Every 15,000 mi	Brake Linings (inspect) · Brake Pedal Assembly (inspect) · Clutch Pedal Assembly (inspect) · Cruise Control System (inspect) · Drive Axle Assembly (drain & refill) · Driveshaft Flange Yoke (torque)
Every 30,000 mi	Accessory Drive Belt (inspect) · Choke System (inspect) · Clutch Hydraulic Line (inspect) · Drive Axle Assembly (drain & refill) · Engine Air Filter Element (replace) · Engine Air Filter Housing (clean)
At 60,000 mi	Drive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill)
Every 60,000 mi	Air Conditioning Condenser (inspect) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Ignition Timing (inspect) · PCV System (inspect)
Every 90,000 mi	Oxygen Sensor (replace)
At 120,000 mi	Universal Vehicle Operation (inspect idle speed)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The provided federal record contains no entry for 1991, covering only 1992 through 1995, which prevents direct quantitative comparison of the target year against the documented generation arc. Within that 1992–1995 window, complaints fell to a low of six in 1993 before climbing sharply to a peak of twenty-one in 1994, with recalls and investigations emerging only in 1994 and 1995; 1991 precedes this entire documented trend. For 1991 itself, the data show only isolated complaint areas—three seat-belt and two latch/lock/linkage reports—alongside zero crash complaints and one fire complaint, with no supplied totals for recalls, investigations, or overall complaints. Because the dataset offers no 1991 benchmark against the later escalation pattern, buyers have no federal evidence to place this year within the generation's reliability curve. Consequently, 1991 is an unquantified outlier in these records, making it impossible to endorse as a verified strong year based solely on this federal profile.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 1 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’92 ’93 ’94 ’95

Owner complaints filed with NHTSA, by component

All 7 complaints on record, top 4 components.

Seat Belts3

Latches/Locks/Linkages2

Suspension1

Electrical System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

06E026000Exterior LightingReported 23/03/2006

CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL… Remedy: PRO-A MOTORS WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN ON APRIL 3, 2006. OWNERS MAY CONTACT PRO-A MOTORS AT 323-838-2988.

95V103009Seat Belts:Front:Buckle AssemblyReported 24/05/1995

THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY. Remedy: OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD…

Technical service bulletins NHTSA · verified

Showing 4 of 4 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
IB13-R-001G	2023-05-08	Unknown Or Other	This bulletin outlines the procedures for using the Alpine Exchange Program (the…
WB13-X-001B	2022-08-30	Equipment	Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural…
WB13-X-001A	2022-08-02	Equipment	Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural…
SB0012S002	2000-03-01	Equipment	THIS TECHNICAL SERVICE BULLETIN OUTLINES THE DETAILED PROCEDURES FOR THE AIR CONDITIONING…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420

Catalyst system efficiency below threshold — Bank 1

P0300

Random / multiple cylinder misfire detected

P0171

System too lean — Bank 1

P0455

Evaporative emission system leak detected — large leak

P0128

Coolant thermostat below regulating temperature

P0442

Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific Pickup. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBs OBD-II trouble codes Maintenance schedules

Frequently asked

Does the 1991 Pickup have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.