So last night I went to start my car and it would crank, but not start. After a few tries, it finally started up, but then immediately died out. I kept starting it and letting it die and it eventually stayed running when I gave it a little bit of gas. I don’t have to continue to give it gas to...

2012 ECO, AT, 86k miles, well maintained. 1K miles ago my engine started whistling immediately after starting cold, then as engine rpm's come down to normal (800 or so) the whistling stops. I can't pinpoint location but seems to be from behind or below the aluminum heat shield over exhaust...