Weird cold start noise, 2006 hyundai sonata v6 The reason is the variable valve timing actuator pin can wear out and not engage when the vehicle is parked. It doesn't sound like belt slip or timing chain to me.
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After a few hundred miles i began to hear a rattle on cold start that lasts approx 5 secs
I did my research and saw the tsb concerning the timing chain tensioners.
Weird noise on cold starts, 2006 sonata v6 Doesn't sound like timing chain or belt to me. Learn to diagnose that startup rattle We cover 5 top causes, helping you tell the difference between minor sounds and serious problems requiring a.
Rattling at startup in a 2006 sonata 3.3l usually indicates a worn timing chain tensioner or lifters lacking oil pressure The tensioner may fail to maintain proper chain tension, causing noise until oil circulates. A rattling sound at startup in the sonata v6 commonly indicates a failing timing belt tensioner This component maintains proper belt tension
When worn, it causes noise and risks belt slippage.
Engine noise present for about 4 seconds when the car is started. It made the noise on start, sat 10 minutes, and made it again It is only for a couple seconds, but it's still. It runs well, but when cold starting, there is a rather pronounced buzzing/clattering sound from the engine compartment
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Learn about side effects, interactions and indications. 2006 hyundai sonata v6 timing chain rattle the timing chain rattles for the first few seconds of any cold start and then runs fine after oil pressure is built up The car has done it for years, but on the last oil. Maintenance engine rattle on startup then goes away [mystery solved!] by hector west during cold startup engine rattles and then goes away because the.
Do you hear a rattle from your car's engine on cold starts