Is it something new with your car? Because mine (2014) and a couple of my friends ones (2015 and 2016) have been like this since day 1. Annoying but "normal"?

 

No I’ve had it for a few years and it has never shook like that. The idle has never went that low until a few months ago. Can’t think of any changes that would’ve caused it.

 

No I’ve had it for a few years and it has never shook like that.

I see. I was concentrating more on the low rpm but such a vibration I don't experiment. Sparks or some fuel intake issue? Sorry I can't help more.

 

The video may not do it justice, but the vibration is very aggressive.

 

Yeah I ordered some spark plugs thats gonna be the next thing I try.

 

I had a similar problem on a 2007 Corolla, which was caused by the intake manifold gasket being slow to expand during the engine warm up period. Symptoms were the exact same as you described, except it only happened between cold start and operating temp. Toyota actually released a TSB for this gen for the problem.

I'd check for air getting into the engine after the MAF somewhere. The gasket is easy to change and relatively cheap so it may be worth looking into.

 

I think you are on the right track with the spark plug change at 90K miles.
On a side note, were the engine mounts actually broken or just sagging a lot?

 

I’m no mechanic by any stretch, but I could tell they were wore out. All 3 had enough play that i could move them with my hand easily once I removed them. The new ones I couldn’t. Could rev the engine and watch the engine jump around and see all the mounts move.

I was shocked how much play there was on a 2015 model under 100k miles but I guess those things can happen at any time and I got off pretty easy ~$150 for all 3 mounts from RockAuto.

 

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