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Soft Knocking Noise. Please Help!


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Posted

I have an 08 Vortec Max. When I start my truck up on a COLD morning. I can hear a soft knocking sound. After the truck warms up. The knocking goes a way. What is this?

Posted

Probably is the cold start knock many of us hear first thing in the morning. Pretty common. Sometimes changing oil brands or types (dino vs synthetic) clears it up

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