2004 Chevrolet Express 2500 Engine cooling Problems
- Complaints
- 2about this part
- Share
- 25%of 8 total for the year
- Median mileage
- 59,250miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2004 Chevrolet Express 2500, 25% of the 8 complaints for this model year. Where a mileage was given, the median is 59,250 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.
“As I attempted to speed up in traffic, I heard a noise and the vehicle suddenly slowed down. I was able to get it off the highway on to a side road. Once there, it would not start. On closer inspection, I saw that the belt had come apart and off the pulley's. I had the van towed to my home and subsequently, fixed/replaced the belt. Since that time, I began to hear a low knocking, more so when I turned on the air conditioning. When it became louder on all gears and while parked, I took it to holler drivers mart, in winter park, fl. …”
NHTSA complaint #10447592, filed 2012-02, 15,500 miles“Mysterious coolant leak. Reservoir is low and needs refilling often. Mechanic has performed pressure test to no avail. No coolant on ground at any point. No visible signs of leak. This began right after 2nd cracked flywheel was replaced. At the same time a lifter knock began as well. 1st flywheel was replaced at 103k (3k outside of extended warranty). 2nd flywheel replaced at 143k. Van is kept in mint condition, oil changed every 3k w/o fail. Vehicle seems to be in otherwise terrific condition. 1st and only owner. Date referred to is date of 2nd flywheel crack.”
NHTSA complaint #10336168, filed 2010-06, 103,000 milesRelated service bulletins
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- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10240344Jul 31, 2023This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 10235802Apr 24, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234141Mar 23, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234110Mar 17, 2023This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2004 | 2 | 25% |
Other parts of the 2004 Chevrolet Express 2500
3 complaintsTransmission and drivetrain
3 complaintsElectrical system
1 complaintsEquipment
1 complaints
← All problems reported for the 2004 Chevrolet Express 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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