2003 Chevrolet C4500 Fuel system Problems
- Complaints
- 1about this part
- Share
- 20%of 5 total for the year
- Median mileage
- 65,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the fuel system of the 2003 Chevrolet C4500, 20% of the 5 complaints for this model year. Where a mileage was given, the median is 65,000 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.
“After months of hard starting the engine, thinking it was the cold weather, older glow plugs, it turned out to be not enough pressure in the fuel system. The fuel injectors are leaking diesel fuel into the crankcase. Chevy has know of this problem for some time. They want 4500.00 to replace the injectors. The oil is contaminated and can catch on fire. I do not know if there is further damage to the cylinders or pistons or other components due to driving with contaminated oil. Chevy says to bad. Roll the dice on the repair or buy a new truck. …”
NHTSA complaint #10424221, filed 2011-09, 65,000 milesRelated service bulletins
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10176607May 8, 2020This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10171878Jan 2, 2020This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended…
- 10018560Jan 6, 2006Service vme - 2006 duramax diesel engine fuel system components are not interchangeable with earlier year model vehicles.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 1 | 20% |
Other parts of the 2003 Chevrolet C4500
← All problems reported for the 2003 Chevrolet C4500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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