type this. Well, actually it's airing out now.
Took off the whole air intake duct, and while I still couldn't get to the MAF caught between the air filter box and the remaining air duct - still would not come apart. I just sprayed the MAF sensor through the top of the air box, seeing as I took all of it off the truck, the bad stuff was only going to drip to the ground and not up into the throttle body.
And the throttle body - well, let's just say it was GROSS!!
But, it had never been cleaned before in all of 155k miles - could have been worse, but it was BAD. It's no wonder why I was getting the P0401 EGR insufficient flow code.
What amazed me actually - is I'm using the typical STP Air intake/throttle cleaner stuff, and it's coming off relatively easy. A little bit of elbow grease, but not much.
But DO lay a towel or a couple shop rags underneith the TB as it will spill out black crap as you spray and go all over.
Probably would've been easier to take the whole TB off the truck, but don't quite have that time this weekend, but I had to replace that little throttle coolant hose, so I dove into this at the same time.
Taking it into town in the next half hour, let you know how it BREATHES.
Also took off the PCV valve and all of the hoses too and from to clean them out. Not too bad considering how nasty that intake hose was.