Not sure if it’s necessarily a problem but I have 8xx miles on my 6.2 boss and ever since I got it I realized on cold starts for like a second maybe a second and a half I hear a knocking/marble/ticking sound. I can hear it from inside my house sometimes with the window open. It goes away immediately and dosent do it on a warm start. Is this piston slap? Injectors? Anyone else hear this?