RalphT

92 F-150 5.0 automatic 4x4; 189K miles; runs good, just recently started hearing a banging noise when started and running, intermittent, thought it was loose exhaust got underneath all is tight; had truck running while underneath and swear noise was coming from oil pan but I think its from where exhaust from right/left connect before catalytic converter. Could it be big piece of carbon bouncing around exhaust pipe or catalytic converter problem? Any ideas. Ralph

Scraptor

Some times the cat core breaks and flops around, heatsheilds make some evil noises too