1991 Isuzu Pickup - Maintenance & Specs

The 1991 Isuzu Pickup belongs to a Isuzu Pickup lineup that Know Your Ride tracks across 15 model years, from 1981 to 1995. The 1991 sits mid-run, with both earlier (1981) and later (1995) Pickup model years also documented. Detailed oil, fluid and parts specifications for this generation are still being expanded - the related Pickup model years listed below may carry more complete records.

Oil specifications for this vehicle should be verified with your owner's manual or authorized dealer.

No NHTSA safety complaints or open recalls are currently on record for this vehicle, which for an older or low-volume model often reflects limited reporting.

Quick Specs

Engine oil

See owner's manual

Common Trouble Codes

P0300 - Random/Multiple Cylinder Misfire Detected
P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
P0171 - System too Lean (Bank 1)
P0128 - Insufficient Coolant Temperature for Stable Operation
P0442 - Evaporative Emission Control System Leak Detected (small leak)
P0455 - Evaporative Emission Control System Leak Detected (gross leak)
P0700 - Transmission Control System Malfunction
P0301 - Cylinder 1 Misfire Detected
U0100 - Lost Communication With ECM/PCM A

Related Vehicles

1990 Isuzu Pickup 1992 Isuzu Pickup 1989 Isuzu Pickup 1993 Isuzu Pickup 2002 Isuzu Rodeo 2002 Isuzu Trooper 2001 Isuzu Rodeo 2001 Isuzu Trooper

See full specs, parts & repair guides →

Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.