Back before Christmas we had some colder than normal days - here that means it is below freezing for a significant portion of the day. One of those mornings I started up the engine and it started right up, but it only ran for 5-10 seconds, then died. I cranked it some more but it wouldn't catch. Actually, I cranked it enough to run down the battery.
I didn't have time to mess with it then so I drove the Sienna for a day or two. When I had a chance to spend a little time on it it was warmer. I added 5 gallons of gas and a bottle of fuel line antifreeze to the tank (obviously I was thinking along the lines of a frozen fuel line). I jumped the battery and cranked. It acted pretty well like it has the 2 or three times I've run it out of gas - a lot of cranking interspersed with turning the key a few times to run the fuel pump - and eventually it caught a couple of times then started. Then it ran fine for a couple of weeks.
Well, we were out of town for over a week and the Subie sat. I drove it once after we got back. It was quite cold that morning but it ran fine. A couple of days later it did the same thing as before - started right up, died after a short period and wouldn't hardly even catch after that. So it's been sitting there a couple of days and I need to get it going again soon. This time the gas tank is full because I filled it up before we left town.
Anybody have an opinion on where to start looking? I guess I would probably start by jumping it again and cranking it a bunch, making sure there is spark, and then pulling a plug to verify that fuel is reaching the cylinder. If it actually was water in the fuel the first time (not so sure now) then replacing the fuel filter would be a good move.
Edited by msteel, 16 January 2010 - 11:26 AM.