The 1991 Isuzu Trooper has 2 NHTSA recall campaigns affecting an estimated 29,270 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 71 complaints with NHTSA, most often about the power train. Last updated July 5, 2026.
PUTTING IN MORE TRANSMISSION OIL THAN SPECIFIED CAN CAUSE OIL TO BLEED THROUGH AIR GROOVE ON TO THE EXHAUST MANIFOLD IF OIL TEMPERATURE RISES.
THIS COULD CAUSE SMOKE EMISSION FROM THE MANIFOLD, WHICHCOULD IGNITE RUBBER HOSES AND RESULT IN A FIRE.
REPLACE OIL LEVEL GAUGE AND NOTIFY OWNERS TO USE ONLY THE SPECIFIED AMOUNT OF AUTOMATIC TRANSMISSION FLUID.
IMPROPERLY INSTALLED HOSE ON THE OIL COOLER COULD COME IN CONTACT WITH THE EXHAUST MANIFOLD AND COULD MELT.
ENGINE OIL COULD LEAK OUT WITH POTENTIAL FOR ENGINESEIZURE AND DAMAGE AND COULD RESULT IN A FIRE.
PROPERLY INSTALL COOLER HOSE CLIP TO PREVENT CONTACT WITH EXHAUST MANIFOLD.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Tl* the contact owns a 1991 isuzu trooper. The contact stated that the accelerator cable was stuck which caused the accelerator pedal not to release. The failure was progressing more frequently. The contact stated that the engine speed would not immediately decrease upon the release of the…”
“Tl* the contact owns a 1991 isuzu trooper. The contact stated that the accelerator cable was stuck which caused the accelerator pedal not to release. The failure was progressing more frequently. The contact stated that the engine speed would not immediately decrease upon the release of the…”
“While applying the brake pedal consumer heard a loud squeaking noise and vehicle vibrated uncontrollably. Vehicle was taken to the dealer for inspection, and mechanic determined that the brake pads needed to be replaced. Also, consumer noticed that while applying the accelerator pedal vehicle…”
“While applying the brake pedal consumer heard a loud squeaking noise and vehicle vibrated uncontrollably. Vehicle was taken to the dealer for inspection, and mechanic determined that the brake pads needed to be replaced. Also, consumer noticed that while applying the accelerator pedal vehicle…”
“Intermittently while driving between 50 to 60 mph and shifting from lower to higher lever gear vehicle experience sudden acceleration. *ak”
“Vehicle's engine compartment caught on fire.*mr consumer was at a toll both when she noticed smoke coming from the engine compartment. She pull over into the employee parking lot and exited the vehicle with three other occupants. The fire was extinguished by the fire department. There were no…”
“There was a recall regarding the automatic transmission, however consumer was informed vehicle was not included due to the vehicle identification number.*jb”
“No summary listed for above vehicle. *ak”
DEFECTIVE HEATER CORES
ENGINE COMPARTMENT FIRES
There is no summary currently available
There is no summary currently available
There is no summary currently available
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1991 Isuzu Trooper as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.