The 1998 Isuzu Trooper has 1 NHTSA recall campaign affecting an estimated 3,062 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 48 complaints with NHTSA, most often about the engine and engine cooling. Last updated July 5, 2026.
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES. THE TRANSFER GEARBOX FLANGE NUTS WERE NOT PROPERLY INSTALLED, CAUSING THE NUTS TO LOOSEN.
IF THE FLANGE NUTS LOOSEN, THE PROPELLER SHAFT CAN SEPARATE, RENDERING THE VEHICLE INOPEATIVE.
DEALERS WILL INSPECT FRONT AND REAR FLANGE NUTS AND, IF FOUND LOOSE, TIGHTEN TO SPECIFIED TORQUE AND SECURED STAKED AT TWO PLACES.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“When idling the vehicle is idling very high. Also the check engine light is coming on, and while driving the vehicle as you start to let off the accelerator, the vehicle jerks you, almost to the point of getting whiplash. We have had in the shop at least 3-4 times and lots of times for a week at a…”
“When idling the vehicle is idling very high. Also the check engine light is coming on, and while driving the vehicle as you start to let off the accelerator, the vehicle jerks you, almost to the point of getting whiplash. We have had in the shop at least 3-4 times and lots of times for a week at a…”
“When idling the vehicle is idling very high. Also the check engine light is coming on, and while driving the vehicle as you start to let off the accelerator, the vehicle jerks you, almost to the point of getting whiplash. We have had in the shop at least 3-4 times and lots of times for a week at a…”
“When idling the vehicle is idling very high. Also the check engine light is coming on, and while driving the vehicle as you start to let off the accelerator, the vehicle jerks you, almost to the point of getting whiplash. We have had in the shop at least 3-4 times and lots of times for a week at a…”
“Engine is exhibiting abnormally high oil consumption. One quart per 500 miles. Imminent engine failure if problem is not corrected. *tr”
“Tl*the contact owns a 1998 isuzu trooper. The vehicle has original bridgestone dueler 684 tires. While driving 65 mph, the vehicle began to ride as if the tires were unbalanced. The contact attempted to find a safe place to pull over and noticed that the tread completely separated from the front…”
“Using 1 qt oil every 450 miles. *tr”
“I ahve a 1998 isuzu trooper. 3.5 v6. I used 1qt of oil every 500 miles. Isuzu statse this is within specs. I disagree. Several others have had the same problem as well as engines completely needed replacement. Please help in making isuzu of north america own up to this flawed engine.”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1998 Isuzu Trooper as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.