upper plenum

[MAITAI1993]

My upper is caked with hard oil and other s-it as well as behind my TB what do I need to do Im gonna take it off do I take it somewhere and have it professonaly wahsed or what its real bad words dont describe it its thick...truck still runs great i would have never noticed but I was doing some work and I was courious to see other things because I pulled my EGR and was like woha WTF it dirty as sh-t..let me know what you guys would do..

 

[gkrcr882]

Re: upper plenum

Try using some ATF to clean off the deposits. If possible, soak the upper intake in a container full of the stuff, HOWEVER: make sure to remove all rubber and plastic components, since the seal swelling agent in ATF will make rubber swell (as the name implies).

 

[NecroWolf]

Re: upper plenum

lots of brake cleaner and a wire brush, then sandblast it

 

[Flyin Ryan]

Re: upper plenum

meth injection tends to clean the intake runners out a bit