Last week it just wouldn't start for a few minutes. Cranks fine but doesn't start. A minute later it works fine.
A few days ago in my driveway it starts but dies as soon as I release the key, several times. I try it again a few hours later, same thing. I call the tow truck, he comes, tries to start it while flooring the gas. It explodes to life releasing lots of smoke (black I guess). he slowly lets up on the gas and it stays on at idle. I drive it to the mechanic, and there is nothing wrong. Starts each time.
The mechanic calls me back an hour later saying that he remembered that if this happens again, open the gas cap and stick a finger into the metal ring to make sure that air can get in. Apparently he learned this trick a while back.
So, any idea what is going on? Since it does catch, it doesn't seem to be the ignition switch which was my original guess. And it has worked fine the last few days. Just a fluke?