@Terrificli -- When you are troubleshooting fuel pump problems, always be mindful that a lot of fuel lines are made of copper. Cranking on the bolts that connect them to the fuel pump could put a small tear in those copper pipes if you are not careful. That could lead to a fuel leak or, in a worst case scenario, a fire.
That is the thing about dealing with fuel pumps and anything else that carries gasoline. Gas is highly flammable and fire is always a risk.
If you are not comfortable working with something that could catch on fire, please consult a professional when dealing with fuel pump problems. A good mechanic has a lot more experience in fuel pump troubleshooting than you do and knows how to be safe.