Updated Timing Chain Tensioner to Correct Noise on Startup on Kia Sorento

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.

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Average mileage: 86,871 (10,800–153,000)
Engines affected: 3.3L V6, 3.5L V6, 3.8L V6
4 model years affected: 2005, 2007, 2008, 2009
12 people reported this problem
8 people shared problem details
Whine on start up and when engine revs.
noisey on start up after setting 1-2 hours just bought vehicle. have to take back to dealer.
2009 Kia Sorento- 3.5L V6153,000
loud knock on start up doesnt go away, oil level low, put in new oil, oil is black sludge, was mixed with synthetic and 30 weight , putting in new engine, need timing for a 2009 sorento chains.
2008 Kia Sorento- 3.5L V671,000
loud tick at start up until warmed up and then will slighting leave ,, sounds like a timing chain
2005 Kia Sorento- 3.8L V6143,000
Just got the car 2 weeks ago. Several mornings upon cranking the engine it has bade a horrible clanking/screeching sound. Dealership I'm buying it from thinks I'm crazy and they don't open till after 9 and I never have the problem after cranking it first thing in the morning. I'm paying 11000 for the car when is all said and done I refuse to fix it less then a month into buying it, but at least now I can tell them what the heck is making the noise.
2007 Kia Sorento- 3.8L V6107,000
timing chain make noise on startup for abount 3 second
2007 Kia Sorento- 3.8L V688,000
same issue , makes noise at startup
2008 Kia Sorento- 3.3L V644,175
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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