If the engine is excessively noisy on startup (after the engine has been off for several hours) and the noise lasts more than four or five seconds, turn off the engine and check for correct engine oil level. If the oil level is correct, the noise may be caused by the timing chain tensioner. Kia released an updated timing chain tensioner to solve this problem.
Updated Timing Chain Tensioner to Correct Noise on Startup on Kia Sorento
Average mileage: 65,595 (10,800–107,000)
Engines affected: 3.3L V6, 3.8L V6
9 people reported this problem
5 people shared problem details
noisey on start up after setting 1-2 hours just bought vehicle. have to take back to dealer.
2007 Kia Sorento- 3.8L V6107,000Visitor
timing chain make noise on startup for abount 3 second
2007 Kia Sorento- 3.8L V688,000Visitor
same issue , makes noise at startup
2008 Kia Sorento- 3.3L V644,175Visitor
on start up of a cold engine, it makes a horrific noise and if setting for 2 hrs on startup...kinda scary???
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