Hi guys I have a problem with my 2001 Mustang Cobra. IT's a eaton swapped cobra, so I hope it's ok to post my problem here Yesterday I and a friend installed new 00R brake calipers. After we installed them, we did a test drive and everything run smoothly. Then we made a short stop at another friends house and when we wanted to go home, I started the car but it stopped running after 1second. I couldnt start the car again after that. This morning I went to my friends house to did some tests, I actually thought it's a blown fuse. But I inspected every fuse and they seem to be ok. I could start the engine, after I put some kick-starter gas into the air intake. So I checked the pressure on the fuel rail and there was not pressure. I actually thought, that the fuel pump isnt working, but when I was at the trunk and my friend put the ignition on, I head something below the trunk what I my opinion should be the fuel pumps in side the tank. There is a fuel pump cut off switch in the trunk. does the button has to be pushed down or not? It was pushed down, but I removed it to reset the button. Is there a ball or something inside? Cause when the button is released and I shake it, I head something rattle in it. Sounds like a ball or so. About the tank. It's a 03 Cobra fuel tank with stock hat but with "2 x 255lph pumps with a pprv delete". I installed these pumps 5-6 years ago and never head a problem so far. Anybody an idea what could cause my problem?