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Do Durango engines occasionally knock upon starting? i drove home from work so my engine was fully warmed up. I turned off the engine went inside my house to get my video camera cause i wanted to make an exhaust vid for my brother, I turn on the engine, it turns on pretty fast. I didn't make much of it cause i didnt hear anything(just regular sound of the exhaust). but from the video you can hear from the exhaust some funky rumbling in the beginning. take a look.
Haha idk I thought the beginning sounded funky. and thanks!! I wish my camera would pick up all the sound :/ there's too much bass for it to handle lol
What you are hearing is a vacuum being caused after the engine rpm drops and the tail presure is more than the manifold end pressure so it causes a vaccum inside creating the gorgling sound.