In an earlier post, "Need help prescribing problem..." I described everything I could about what was going on. Now I'd like to see if this bit of information leads to a bad transmission.

P-At idle, low vibrating. Although when revved, seems difficult
R-At idle, A LOT of vibrating. Rolling reduces some vibration.
N-At idle, low vibrating. Although when revved, seems difficult
D-At idle, A LOT of vibrating. Rolling reduces some vibration.
2-At idle, A LOT of vibrating. Rolling reduces some vibration.
1-At idle, A LOT of vibrating. Rolling reduces some vibration.

So I guess, if the engine is in gear it's vibrating a lot, and if not in gear it doesn't vibrate as much. The constant "sluggish" revving/acceleration is really confusing me.

What do you guys think?

 

I don't think that is a transmission problem. Have you cleaned your TB, IAC Valve done a tuneup etc. etc. This surely seems that you have low idle when in gear.

 

The car is no longer idling too low. It was, but isn't anymore.
Could the problem be a bad coil?

 

I was told by the dealer that there are two kinds of idle. No Load or the one when the car is in park and then one with a load (when car is in D or R or 1 or 2 for that matter). Try turning on your AC. Does that solve your vibration problem? If yes then it is either the coil or the TB. I have that problem right now. I am building up the courage to do the TB cleaning for the time being.

 

Why would turning on the AC do anything?
I already cleaned the throttle body, so I guess it's the coil. I will find out if it's the coil today. I gave in and took it to a shop. I spent 20 or so hours troubleshooting all sorts of stuff.