tadams- it is a mig welder but with out a contractor built in for gas controls. I bet most of the issue is it is flux core- on sheet metal it is the worst because you have to crank the heat up to melt the coating inside the wire to cover the weld from outside air while welding. Just too much heat for sheet metal.
Sorry for the issues you are having. Pm me some questions and I will be glad to help you or anyone with welding questions.
Joe
We should actually have an actual place for all things welding on cars on here Joey.
