You know how when you shut down a motor and its cooling, the metal makes that cracking, popping noise? Well its never very loud or I've never heard it very loud on any Cummins. Since I got my 99 24v when I shut it down that cracking, popping sound is very loud. I mean to the point where it scares a guy. I've been around motors and metal long enough and this seems too loud like theres a problem somewhere.
Today I shut it down and the main noise comes from the exhaust manifold which is normal. Could I have some loose manifold bolts? or a cracked head,manifold?
Today I shut it down and the main noise comes from the exhaust manifold which is normal. Could I have some loose manifold bolts? or a cracked head,manifold?