So as I'm leaving physical therapy today my truck starts making these strange popping and cracking noises. So right now off on the side of the street waiting for the tow truck to show up and tow me to the nearest shop. I looked underneath the truck and I can't find anything that looks out of the ordinary. Anyone got any ideas on what it could be before I get to the shop and the charge me an arm and a leg?
Supercharged, cammed, other things too!