So I have had my car(1994 SSei with 130k) in storage for the winter, and decided the other day to start it up and make sure the battery still has a charge. Lo and behold, the battery won't crank it over all the way, so I dig out Ole faithful, my battery charger. After a few minutes of charging, it turns over just fine, and starts just as it always has. BUT, when I went around to the front of the car to remove the cables from the battery, I saw white smoke coming from the engine. So I opened the door to the car to shut it off (and i'm not sure if this is related, because my climate control has the 3 lines of death, and is always on) but the inside of the car had some of the white smoke in it too. So i shut it off because i had to go to work, and that is where I left it. I know I havent given enough info, like oil conditon, coolant level, etc, but i had to leave in a hurry. What i DO know is that the check engine light never turned on, nor did the car overheat. Is this the classic white smoke of a blown head gasket?

What did the oil smell like? Was it oil, sweet, electrical? If I had to guess I would say you had oil leak either in to the cylinder, bad valve seal, or on the manifolds.

it definetly wasnt electrical. I wish i knew whether it was a coolant smell or oil smell, but I cant tell the difference. Does oil give off a white smoke?

Oil will be a bit more blue. Coolant will have a some what sweet smell. Was it coming out of the tail pipe or all from under the hood? It'* sounding like you had some coolant pool up on the top of the engine.

The exhaust was fine, just as normal. All of the smoke was coming from under the hood, and it wasn't to my knowledge blue tinted. Something i forgot to mention earlier: before i got out the battery charger, i tried starting it and pumping the gas, because it would almost turn over, but not have enough juice to fire up. Now i know that because it'* fuel injected, chances are that when i pumped the gas, it did nothing at all. right?

I would check for polling coolant around the area that the LIM contacts the heads. Also inspect the area of the heads where the exhaust manifolds are.

What would cause coolant to pool in the upper end of the engine?

LIM gasket failure. Check your oil for coolant/foam also.

How hard of a job is it to replace the LIM gasket?

It will take several hours, or a good part of the day. But very doable. here is a write up about it.

https://www.gmforum.com/t278911/