I have a 2014 Patriot 4X4 with the 2.4 engine and 6-speed automatic transmission that has an intermittent banging from under the body. It sounds like metal-on-metal hammering. It's intermittent but seems to happen under acceleration from a stop. The noise almost sounds like the muffler is hitting the chassis and thumping.

My friend who does my repairs, as well as his friend who is a tech at a Jeep dealer, can't find the source. They did a thorough check of things and it all looks good. My friend went on vacation, so more diagnosis is on hold for a week or two. There isn't anything similar discussed in Jeep tech lines.

Has anyone else come across this concern? Any ideas appreciated.

Thanks,
Harold