I've got a '07 1500 Hemi with 800 miles on it and I've noticed when I turn the motor off there's a pinging noise. I don't have spark knock or hear that noise when I'm driving but only when the truck is cooling down. I didn't have this on my other ram 1500 and wonder if this is a problem or just part of a new truck breaking in. Does anyone have any ideas?

 

The pinging you are hearing is more than likely from metal parts cooling (exhaust). Nothing to worry about

 

almost anything will make some popping noises while it is cooling down. absolutely nothing to worry about.

greenmachine that sig is great laughed for at least five minutes.

 

I have had that for some time and still laugh at it myself

 

its better than one on the forum i am on for jeeps. this guys has one that says "Offroadn ...... it's like sex.... only better"