What can make a popping sound besides your tire blowing out? on 2007 GMC Yukon Denali

Checked to see if it was my tire but it wasn't.

2 answers 1 comment
Gun fire!! Any holes in your GMC? Had to fo it. Is it tunning ok? Possible engine backfire.
My Toyota Tundra has a faulty tire pressure transmitter on one front wheel. I can put the recommended air pressure in and in a few days or less the valve will pop and let air out to 22lbs. I have done this several times, the dealer does not believe me. If have the window open it sounds like gunfire.
Well i be dipped, never heard of that!