2003 Isuzu Ascender Engine cooling Problems
- Complaints
- 2about this part
- Share
- 6%of 35 total for the year
- Median mileage
- 9,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2003 Isuzu Ascender, 6% of the 35 complaints for this model year. Where a mileage was given, the median is 9,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While driving the vehicle stalled without warning. The vehicle was towed to the dealer. The dealer drove the vehicle off the premises and it stalled. The vehicle had to be towed back to the dealership. The dealer has not been able to determine the cause of the stalling.”
NHTSA complaint #10059342, filed 2004-02, 9,500 miles“The contact owns a 2003 Isuzu Ascender. He stated that intermittently while driving 50 MPH the ses and check engine warning light illuminated on the instrument panel, then the vehicle stalled. As a consequence, the risk for a vehicle crash was increased. The vehicle was towed to a dealer and repaired ten times; however, the repairs have not remedied the failure. The vehicle identification number was unavailable. The failure and current mileages were unknown.”
NHTSA complaint #10285169, filed 2009-09Related service bulletins
- 10217004Jul 20, 2022The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out…
- 10212625Jan 11, 2022This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
- 10154306Feb 19, 2019This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the…
- 10154299Feb 18, 2019This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10154566Dec 6, 2018This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the…
- 10154552Dec 3, 2018This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and…
- 10115143Nov 30, 2015This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with…
- 10135322Oct 10, 2014This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with…
- 10112251Sep 24, 2014This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller…
- 10112116Jul 17, 2014This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible…
Engine cooling: other model years
Other parts of the 2003 Isuzu Ascender
9 complaintsExterior lighting
7 complaintsFuel system
6 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsBody and structure
3 complaintsSteering
2 complaintsAir bags
1 complaintsLatches, locks and linkages
1 complaintsSeat belts
1 complaintsSeats
1 complaintsSuspension
1 complaints
← All problems reported for the 2003 Isuzu Ascender
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology