Why my engine shake in idle?

Tacoma 2006 V6 4L

 

You need to provide more information than what is in the title:
Miles
The last time spark plugs were changed
Have coils ever changed?
Did it start at the last fill-up?
This is just a start.

 

192000miles since I bought it I never changed the spark plugs and coils so It might be the problem thanks!

 

I would like to see a pic of what’s left of your plugs when you change them out lol.

 

You should have looked at the owners manual or googled maintenance way sooner than this..
https://www.ttguide.net/maintenance_data_fuel_oil_level_etc_-158.html

Toyota Owners documentation
https://www.toyota.com/owners/resources/warranty-owners-manuals.tacoma.2013

Maintenance Schedule
https://assets.sia.toyota.com/publi...E5EFVZ*MTY1MTA5MjE5MC4zLjEuMTY1MTA5MjIwNi40NA..

 

I'm a psychic...
https://www.tacomaworld.com/threads/spark-plug-recommendation.763731/

 

Go with Denso iridium if you are the type of person that likes to set it and forget it. You can get about 100,000 miles out of them.

 

Also can be a symptom of worn engine mounts

 

Clean the throttle body

 

And MAF sensor

 

Start w/plug change and go from there.

Or go with OEMs. Apparently you can get about 200k out of them.

 

Start from the beginning of the Maintenance Schedule..

 

Denso are OEM but I would rather not go over 30k on copper which is why I recommend iridium.

 

Guess my sarcasm/joke was lost on you. I'm well aware OEM uses Denso (as well as NGK) and not iridium style.

 

I went to buy iridium plugs at my local Toyota dealer. I was talked out of them by the parts department and the service advisor.They said that they caused issues in some Tacomas.

 

I call bs. It is like them saying you can't change the upper ball joint because all they can do is change the whole control arm and tell you the ball joint it self is non-serviceable.

 

My 2.7 also shakes (vibrates) a bit a idle. It’s annoying but normal I guess.

 

Changed the coils and spark plugs but the same problem happen, I cleaned the throttle body and changed my air filter but no better results! (NGK IRIDIUM SPARK PLUG WITH DEAL AUTO ELECTRIC PARTS IGNITION COILS)

 

From the oil soaked looking plug it appears your valve cover / spark plug tube seal gasket is leaking.

 

Did you gap the plugs? I know the dealer will say they're pre gapped, but always double check.