There are 4 stored owner reports matching the engine leading-label group for the 2004 Isuzu Ascender in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)TL* THE CONTACT OWNS A 2004 ISUZU ASCENDER. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE DECELERATED WITHOUT WARNING. THE FAILURE OCCURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE BANK ONE SENSOR WAS RUNNING RICH AND THE BANK TWO SENSOR WAS RUNNING LEAN. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 180,000.
I WAS GETTING OUT OF MY DRIVEWAY WHEN SUDDENLY THE ENGINE SHUTDOWN ,AND I HAVE TO RESTART IT AGAIN .NO PROBLEM ON RESTARTING. *TR
CHECK ENGINE LIGHT CAME ON WHILE VEHICLE WAS IDLING. TOOK TO DEALER AND HE HAD TO REPROGRAM OR REBOOT THE COMPUTER. (1 DAY AT DEALER) SUBSEQUENTLY (APPROX. 6 MONTHS) THE DASH LIGHTS FAILED (NO WARNING LIGHTS) DEALER REPROGRAMMED/REBOOTED COMPUTER. PROBLEM RECURRED ON TRIP HOME SO I RETURNED CAR TO DEALER. DIAGNOSED AS BAD INSTRUMENT PANEL - TOOK 6 DAYS TO GET REPLACEMENT PART. PARTS FOR ISUZU HAVE TO BE ORDERED FROM ISUZU. THE EXACT SAME PART IS AVAILABLE FROM CHEVROLET, GMC, BUICK AND WAS READILY AVAILABLE FROM ANY OF THESE BUT WE LOST USE OF OUR VEHICLE FOR 6 DAYS WAITING ON ISUZU TO DELIVER THE PART. *NM
WHILE THE VEHICLE WAS PARKED, LIQUID WAS LEAKING FROM UNDERNEATH THE VEHICLE. THE CHECK ENGINE LIGHT FLASHED ON AND OFF ON THE DASHBOARD. THE CONSUMER NOTICED THAT THE VEHICLE WAS RUNNING ROUGH. THE CONSUMER TOOK THE VEHICLE TO THE DEALER FOR INSPECTION, AND THE MECHANIC DETERMINED THAT THE HEAD GASKET NEEDED TO BE REPLACED. THE CONSUMER INFORMED THE MECHANIC THAT THE HEAD GASKET WAS REPLACED THREE TIMES AND THE PROBLEM RECURRED. *AK
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.