my sister's car is broke down again , it's a 2004 Chevy cavalier , 2.2 euro tech engine , Saturday the radio stopped working , i put a CD in and it started working again , well then we went to park and the car died , i checked the oil it was 1.5 low . put some in and the engine is turning but not starting , i put in a new starter and battery ( the battery test read 3.5 ) , but it still does nothing , we smell gas , now when i look at the gauges when i turn the key all the needles are bouncing up and down including the gas gauge . update the new battery is already dead and the key was only turned twice