There are 5 stored owner reports matching the fuel system leading-label group for the 2003 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 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)SMELL OF GASOLINE AND DRIPPING UNDERNEATH REAR BENEATH FUEL TANK (DRIVER'S SIDE), WHEN STARTING. PROBLEM WAS FOUND TO BE THE FUEL PUMP MODULE AT THE LINE :OUTPUT SIDE OF PUMP. REPLACED FUEL PUMP MODULE AND RING. PARTS AND PICS AVAILABLE. *TR
GAS ODOR AND GASOLINE DRIPPING BENEATH FUEL TANK WHEN PARKED. *TR
I PURCHASED A NEW 2003 ISUZU ASCENDER IN SEPT. 2003. WHEN THE VEHICLE HAD APPROXIMATELY 500 MILES ON THE ODOMETER THE SERVICE ENGINE SOON (SES) LIGHT CAME ON. WE TOOK THE SUV TO AN ISUZU DEALER WHERE I WAS TOLD THAT I HAD IMPROPERLY PUT THE GAS CAP ON AND THAT IS WHY THE SES LIGHT CAME ON. WITHIN A WEEK THE SES LIGHT CAME ON AGAIN. MY HUSBAND TOOK THE CAR BACK TO THE DEALER WHERE THE VEHICLE WAS THOROUGHLY CHECKED AND THE ISUZU DEALER FOUND A LEAK IN THE FUEL TANK. THE TANK WAS REPLACED AFTER A LENGTHY WAIT FOR THE PROPER PARTS. WE THOUGHT THE PROBLEM WAS SOLVED. JULY 2, 2007 WE RECEIVED A RECALL NOTICE FROM ISUZU STATING THAT THE SES LIGHT MAY COME ON AFTER FUELING AND THAT YOU MAY SMELL A FUEL ODOR. WE BROUGHT THE SUV TO AN ISUZU DEALER ON JULY 5. THE SERVICE STAFF FOUND 2 LEAKS IN THE TANK. IT IS NOW JULY 13, 2007 AND THE CAR IS STILL AT THE DEALERSHIP BECAUSE THEY ARE UNABLE TO GET A TANK FOR THE SUV. THE DEALERSHIP WILL NOT ALLOW US TO DRIVE THE SUV OFF THE LOT BECAUSE OF THE POTENTIAL RISK OF IT CATCHING FIRE OR EXPLODING.
FILLER NECK BROKEN AT FUEL TANK. DAMAGE NOT INCURRED BY OUTSIDE SOURCE. FOUND OUT FROM SHOP WORKING ON VEHICLE THIS IS COMMON OCCURRENCE. CONSIDER THIS SAFETY RISK DUE TO GAS LEAKING. *JB
SES LIGHT COMES ON AFTER FUELING--SMELL OF GASOLINE EVIDENT AROUND LH REAR CORNER OF VEHICLE. VISUAL INSPECTION INDICATES FUEL LEAKAGE AT FILLER NECK TO TANK CONNECTION. ODI CASE # 'S 10104638, 10139878 & 10134665 ARE SIMILAR TO THIS ONE. VEHICLE HAS HAD THIS SITUATION FOR AT LEAST A YEAR AND 30-40,000 MILES. *NM
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.