HI Jamie.
A big reason for getting a dirty throttle body and plates is because of the PCV system. It's job is to pull fumes from the internal engine and send them through the intake to be burned. This is necessary because a part of the engine oiling systems job is to absorb fuel fumes and the PCV system pulls them out... but there is a tendency to take oil fumes too.
I found a You-Tube video for your vehicle on PCV replacement.
https://www.youtube.com/watch?v=mXY9iYQ_dnE
While the intake hose is removed, clean the throttle plates and the bore where the plates seat against it. Because your throttle body points up, be extra cautious not to drop anything down it while cleaning. What I do is use long-nose needle nose plyers and 'cloth' shop towels. Pinch the towel with the plyers, wrap towel around the plyers, spray the towel with throttle body cleaner, open the plates and clean the back and edges of the plates and the throttle body housing. This may take a few towels depending on how dirty it is.
One thing the video says is to use a silicone paste on the reinstall of the PCV. Please do not use silicone of any type as this could actually cause damage to the O2 sensors (silicone and O2 sensors don't get along). A simple coating of oil on the new PCV will work just fine.
Hope this helped. Glenn
Wednesday, November 11th, 2020 AT 1:01 PM