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Engine coolingPart report

2004 Kia Sorento Engine cooling Problems

Complaints
46about this part
Share
21%of 220 total for the year
Median mileage
68,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 46 complaints about the engine cooling of the 2004 Kia Sorento, 21% of the 220 complaints for this model year. Where a mileage was given, the median is 68,000 miles. 2 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“After already replacing a crankshaft and a speed sensor in my 2004 Kia Sorento ex, I am now experiencing a knocking sound under the hood. It usually starts while waiting for a stop light but also while driving down the road. My warranty is out and I can't afford to have it worked on at this point. Don't ever buy a used Kia Sorento without checking carfax first!!!!”

NHTSA complaint #10197373, filed 2007-07, 60,000 miles

“Summary: update to below problem I bought my Sorento in 2004, new. I replaced the coolant reservoir at 61000 miles due to overheating, replaced the low beam headlight bulbs on 4 occasions, tail lights on 2 occasions. My vehicle, 5 speed manual transmission, started to have a roaring noise approx. 6 months ago and the u-joints were replaced. It still roars. It quit running on 2-16-12 while I was driving, but restarted. It finally quit again and would not restart on 2-17-12. …”

NHTSA complaint #10453918, filed 2012-04, 120,000 miles

“I have a 2004 magentis which I heard is like the serento. The timing belt jumped and this took out the motor. Up to this I loved my car. Kia said there was nothing they could do but replace the engine at my cost and I would not get it back until it was paid for. Well being a single mother of 4, still making payments on the car for another 4 more years. Needless to say I have a car with no motor and making payments.”

NHTSA complaint #10228705, filed 2008-05, 159,000 miles

“Just normal driving the reserve radiator tank split at the seem. The car has 60,000 miles on it. It leaked all over in my garage and my two puppies almost licked up the coolant from the floor.”

NHTSA complaint #10420851, filed 2011-08, 60,000 miles

“I was driving along the interstate at aprox. 70 MPH. I heard a ticking noise and looked at the dash. No warning lights. I rolled the window up, could not hear the noise any longer and continued down the road. I rolled the window back down, the ticking got louder, all lights on the dash light up, engine stalls, and as I'm moving to the emergency lane, the temp. Gauge moves to the red. The vehicle has 155,000 miles on it so the warranty is up. However, this problem occurred because of the fluid leaking out of the water reservoir. …”

NHTSA complaint #10373729, filed 2011-01, 155,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2026117%
202412%
202311%
202211%
202110%
202032%
2019143%
201873%
2017273%
2016312%
201551%
2014222%
2013192%
2012152%
2011372%
200884%
200764%
2006198%
20054414%
20044621%
20038127%

Other parts of the 2004 Kia Sorento

Engine
46 complaints
Transmission and drivetrain
40 complaints
Suspension
30 complaints
Electrical system
28 complaints
Body and structure
28 complaints
Steering
24 complaints
Air bags
14 complaints
Exterior lighting
14 complaints
Fuel system
14 complaints
Other or unknown
13 complaints
Brakes
11 complaints
Vehicle speed control
7 complaints

← All problems reported for the 2004 Kia Sorento

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