2004 Isuzu Ascender Engine cooling Problems
- Complaints
- 2about this part
- Share
- 3%of 64 total for the year
- Median mileage
- 5,691miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2004 Isuzu Ascender, 3% of the 64 complaints for this model year. Where a mileage was given, the median is 5,691 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.
“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. …”
NHTSA complaint #10170352, filed 2006-10, 5,691 miles“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.”
NHTSA complaint #10101306, filed 2004-12Related 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 2004 Isuzu Ascender
34 complaintsFuel system
17 complaintsExterior lighting
6 complaintsEngine
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsBrakes
3 complaintsSeat belts
3 complaintsBody and structure
2 complaintsTires
2 complaintsTransmission and drivetrain
2 complaintsAir bags
1 complaintsEquipment
1 complaints
← All problems reported for the 2004 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