I have a '96 Saturn SL1 with 39k miles that keeps stalling. I start it up and 20sec later it shuts off. Like someone turned the key off! No engine light comes on. I can hear the fuel pump prime/come on. I do hear a click coming from the dash, maybe a relay, when it shuts off? If I let it sit for a little while, it will start back up and be fine for the rest of the day. Yesterday it didnt start back up and when it finally did it stalled again. The tow truck driver suggested I had bad gas. He said Hess, BJs, WalMart have tons of additives and dont work well in some cars. Any thoughts?