OK so about 1 week ago my girlfriends car starts acting crazy at a redlight it just shuts off and the fuel gauge is just dancing all over the place. So I told her to pull off the highway and I started trying to figure out what was going on. I noticed the was execssive clicking coming form the fuel pump relay. I decided to tow it home and go get a new relay. So I replaced the relay with a new one car acted fine made a nice 23-24 mile trip with no issues and then made it fine on a 17 mile trip to work but didn't make it home I had to tow it again what could her car be doing please help I'm not sure if fuel pump is on its way out or what but she needs her car back up and going please help me out here. Thamks in advance