Push the flared tubing end onto the EP flare fitting body until the end of the fitting body contacts the flare shoulder of the tube. In this article, we will discuss five common tube flaring problems and provide practical solutions to help you achieve perfect, high-quality flares every time. This occurs when. This video demonstrates the repair of automotive wiring harness connectors, specifically the de-pin and re-pin method used for common pigtails, which can often be damaged, corroded, or broken. Key. Mini-split flare connections are notorious for leaking. The fittings thread in easily and you tightened them carefully and yet there it is – a leak. It's that frustrating drip-drip-drip.