Just put everything back together, triple checked all the connections, and started the car. White smoke was billowing out of the exhaust and the SES light was on. I did have a ton of oil in the back right spark plug well, so I'm assuming the smoke is from that, right? Should I just drive it off? I shut the car down after about 20 seconds of smoking. I don't have an OBD reader, so I'd have to get to Autozone to check it.

 

Year/mileage?

IDK about the 3.0, but the 3.5 has plastic valve covers that are notorious for cracking and leaking oil, especially the back one. Get the codes read but it's probably a misfire from the oil in the plug well. Whenever there's oil in the well, it's best to siphon it out with the old plug still installed. This way it doesn't all spill into the combustion chamber as soon as you remove the plug and cause a smoke show.

 

Yeah I totally jumped the gun posting here. Started the car up again, and it barely smoked and only for about 5 seconds. Took it to Autozone, got the code (p0123) cleared and it seems to be staying off. Thanks for the reply though.

 

You're fine, it was definitely the oil that drained into the cylinder.