Extreme shaking, fumes filling cabin, white smoke out exhaust

2011 BUICK ENCLAVE
143,000 MILES • 6 CYL • 2WD • AUTOMATIC
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STEPHC520
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  • 1 POST
So my car decided to just freak out on me.
Started fine at 12:00 pm and then again at 2:30 pm. Drove it three blocks, turned it off to run in house, came back out and started it back up. It started a little rough, began shaking extremely bad, felt like it was going to shut off, fumes started to fill the cabin, White smoke was coming out exhaust and long with some sort of fluid. Engine light came on and my neighbor came with a code reader. Code reader was p0304. Upon looking it up it said it was a cylinder four misfire. Which would need a replacement of coil and/or spark plug.

I bought all parts. I replaced all six spark plugs, 1 new coil for cylinder four, replaced the gasket thingy under the intake manifold. I carefully put everything back together.
The car starts with a weird noise, still shaking mildly, and now blowing an extreme amount of white smoke with terrible fumes. More smoke after replacing everything than before.
Need help. I don’t know what else it could be.
Feb 28, 2019 at 9:22 PM
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SCGRANTURISMO
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  • 4,897 POSTS
Hello,

This sounds to me like you might have a blown head gasket. I have included a few links for you to go to and go through down below. Please go through these guides and get back to us with what you find out. We can go from there.

https://www.2carpros.com/articles/white-smoke-or-steam-coming-from-the-exhaust-pipe
https://www.2carpros.com/articles/head-gasket-blown-test

Thanks,
Alex
2CarPros
Mar 1, 2019 at 2:31 AM