2004 Kia RIO Cinco Engine cooling Problems
- Complaints
- 2about this part
- Share
- 17%of 12 total for the year
- Median mileage
- 5,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2004 Kia RIO Cinco, 17% of the 12 complaints for this model year. Where a mileage was given, the median is 5,000 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.
“Car has stalled numerous times. Vehicle would not accelerate unless the gas pedal was depressed completely to the floor. The car has been into the dealer on 4 different occasions and three of the four times they have replaced a different part. The vacuum seal on the fuel line, the catalytic converter, and a part with a o2 sensor. Each time they tell me that the problem is fixed. Now there is a vibration when the car idles and a scraping sound when the car accelerates from a complete stop. The car will be in for the 5th time for this problem.”
NHTSA complaint #10086878, filed 2004-08Engine cooling: other model years
Other parts of the 2004 Kia RIO Cinco
3 complaintsTransmission and drivetrain
3 complaintsSteering
2 complaintsBody and structure
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsFuel system
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2004 Kia RIO Cinco
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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