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Engine coolingPart report

2006 Kia Sorento Engine cooling Problems

Complaints
19about this part
Share
8%of 242 total for the year
Median mileage
63,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 19 complaints about the engine cooling of the 2006 Kia Sorento, 8% of the 242 complaints for this model year. Where a mileage was given, the median is 63,000 miles.

Example complaints

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

“Crankshaft harmonic balance bolt keeps breaking. Been replaced 2 times now. Saw on some other websites where other people are having the same problem. Some of them are getting lawyers because Kia is refusing to fix the problem. My warranty ran out so they won't fix . All of my repairs have been at my own expense.”

NHTSA complaint #10428363, filed 2011-10, 82,000 miles

“The issue is with 2 kias I bought within the last year. Both automobiles had air conditioner compressors that failed within months of me purchasing it. The first Kia I bought was a sedona 2003. The second is a Sorento 2006 I bought november 2009.”

NHTSA complaint #10343091, filed 2010-07, 62,000 miles

“Crankshaft bolt sheared off in may 2010 at 63,000 miles causing $1200 in damage and towing. After having a Kia dealer fix the issue out of my pocket because I'm a second owner , the issue happened again in july 2011 at 101,000 miles. The dealer again has to repair with similar costs out of my pocket. This is extremely dangerous as the belt connecting to the crankshaft pulley is also attached to the alternator which, when broke, causes a loss of all power, even while the car is at full driving speed. …”

NHTSA complaint #10418282, filed 2011-08, 63,000 miles

“Auto losing speed on acceleration and car running poorly, then quit completely. Had towed to nearest shop for repair. Also had timing belt changed at the same time, per kias required maintenance at 60,000 mi. On feb. 18, 2011, repairs were made: crankshaft bolt was gone and cotter pin sheered off. These items were fixed along w/timing belt replacement.. June 15, 2011, car losing speed on acceleration and running very badly. I was on highway. I did make it home. I had aaa come and tow it to my normal repair shop, the dorsch Kia dealer. …”

NHTSA complaint #10408765, filed 2011-06, 62,000 miles

“2006 Sorento was purchased in nov 2005. Jan of 2006 the check engine light came on and I was told it was due to possible loose gas cap. First time tail light went out was in july of 2006. Right rear tail light was replaced. In october of 2006 a tail light bulb was replaced during my 15,000 mile maintenance. In november 2006 right tail light went out and Kia replaced bulb once again. In december of 2006 left tail light went out and check engine light came on. Bulb was replaced and I was told my spark plugs were misfiring and were replaced. A day later my check engine light came on again. …”

NHTSA complaint #10178154, filed 2007-01, 11,894 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 2006 Kia Sorento

Engine
67 complaints
Exterior lighting
56 complaints
Electrical system
53 complaints
Transmission and drivetrain
35 complaints
Steering
33 complaints
Brakes
26 complaints
Air bags
19 complaints
Fuel system
12 complaints
Suspension
10 complaints
Other or unknown
9 complaints
Vehicle speed control
8 complaints
Body and structure
7 complaints

← All problems reported for the 2006 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