The 1990 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 30 complaints with NHTSA, most often about the power train. Last updated July 5, 2026.
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.
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.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Rear passenger side tire tread started to separate, causing the consumer had to pull over. Sears, trail handler, size#p235/75/r15, dot#3dhllbe488. *ak”
“My 1990 isuzu trooper is exhibiting dangerous revving and dropping of the idle. The truck accelerates without warning and is impossible now to drive safely. It is my understanding that the ecu in these trucks is faulty due to manufacturing defects. I further understand that thousands of others…”
“My 1990 isuzu trooper is exhibiting dangerous revving and dropping of the idle. The truck accelerates without warning and is impossible now to drive safely. It is my understanding that the ecu in these trucks is faulty due to manufacturing defects. I further understand that thousands of others…”
“My 1990 isuzu trooper, standard, intensifies its revs in idle suddenly. Sometimes it goes up and down, up and down... And I can see how the temp gauge rises quickly. My momentary solution in such cases is to stop the car and shut off the ignition and wait, sometimes this leaves me some minutes…”
“Consumer pulled into parking lot, and noticed smoke from front of vehicle. Stopped vehicle , turned off engine, and saw flames were coming from under fender on passenger side. Vehicle was totalled.*ak”
“The back left tire was defective (steel showing) causing the driver to loose control and run across the s/b lane of traffic and struck a guardrail, the vehicle the overturned going over the gouardrail down into a creek bed, the vehicle then flipped rear over front one complete time, all 4…”
“The back left tire was defective (steel showing) causing the driver to loose control and run across the s/b lane of traffic and struck a guardrail, the vehicle the overturned going over the gouardrail down into a creek bed, the vehicle then flipped rear over front one complete time, all 4…”
“While driving, pulled off to rest stop, noticed smoke coming from engine as slowing down, at rest stop, observed flames coming through crevice of vehicle, another motorist used fire extinguisher. Vehicle at repair shop. Was informed seal went out in transmission. *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
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 1990 Isuzu Trooper as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.