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Discussion Starter #1
2007 sky 2.4 echo tech engine noise on cold engine on deceleration quiets down after warmup
 

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I have not heard of this specific problem, can you provide any more detail? How cold is cold? How warm is warm? What oil are you using? When was it last changed? How loud is the clicking? How many miles on the engine?
 

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Engine cold from just sitting overnight new oil 5w30 mobile 1 warm is normal operating temperature sounds like mild baseball card in bike spoke
 

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What is the overnight temperature where you are? Does it only happen below a certain temperature? How many miles are on the engine?

It sounds almost like a noise that my Equinox makes (similar but not identical 2.4 EcoTec) when it idles down from its fast idle. That engine has done it for the last 25k miles or so, since about 100k.
 
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