OK, so I needed to clean my intake, and change the oil. So I decide it would be a good idea to do the intake first in case any gunk gets dislodged into the oil. I did not want to tackle the whole remove the intake thing today, so I just got a can of spray intake cleaner and was going to spray into the throttle body.
When I pulled the accordian boot from the throttle body, I found a sticker on the flange that said...
Do not clean throttle body or adjust hard stop screw. Throttle plate and bore have a special coating.
Good thing I pulled that particular joint. I almost pulled it upstream of the boot in order to spray it too.
So is the only way to clean the intake is the big "remove it from the engine" job?
I did grab a flashlight and look inside the throttle body. Upstream of the throttle plate was shiny clean. Downstream, Holy Crap! I reached in a bit with a lint free wrapped around my finger and pulled chunks of loose oily dirt. Where the hell does all that crap come from?
And we worry about cleaning the plug holes prior to changing spark plugs. The inside of that intake was 100 times more dirty than any engine exterior I have ever had!!
Any thoughts?
Dave