Gas Filter #1?

[GeoRoss]

I am taking another hooky day and cleaning the ports on my upper intake manifold. There is a little two pronged fitting that is sealed into the manifold that connects some vacuum lines. I see no reference in the FSM, a parts diagram calls it the gas filter #1, part number 90917-11023.

Anyone know what it does? My meager searches pulled up nothing.

 

[LINUS]

Just a guess on intuition- I bet there's a filter media between the threaded portion & the 2 taps, so that the vac lines don't gum up & look like your throttlebody.

 

[LINUS]

Don't quote me on that - pull it & look.

If I'm right & you felt like it, you could probably give it a mineral spirit bath to clean it if you were really getting after things here.

 

[surfpig]

Maybe on the actual "filter" part. Mostly it's just a manifold vacuum port.

 

[GeoRoss]

Well, it didn't like brake clean.

I'm sure I didn't damage it but the casing fogged. I ordered a new one whatever it is, pretty cheap $38.

By the way the photo was mid clean. Only the inside of the plenum looked bad. The EGR ports where almost completely blocked. I went back for more brake cleane an brushes to really clean it up.

 

[Tedward]

Brake cleaner on plastic is all most all ways bad.

 

[LINUS]

Brake cleaner on plastic is all most all ways bad.

That's a big 10-4.

Why I said mineral spirits, or WD-40 - IIRC brake cleaner is acetone & chlorine.

 

[surfpig]

That's a big 10-4.

Why I said mineral spirits, or WD-40 - IIRC brake cleaner is acetone & methylene chloride.

.....

 

[GeoRoss]

Brake cleaner on plastic is all most all ways bad.

That's a big 10-4.

Why I said mineral spirits, or WD-40 - IIRC brake cleaner is acetone & chlorine.

I'd already started cleaning before I noticed it. For some reason I thought the whole thing was metal. No big deal, a replacement is on the way even though it is likely ok.