I just bought my 1991 K5 Blazer from a buddy of a buddy and the thing has many problems. One thing I noticed is that there is a hose hanging down (appr. 3/4 OD) with what appears to be an air filter attached to one end and the other end attaches to the top of the transfer case. I am not mechanic savvy and Im learning as I go so Im not quite sure what this does or where it goes. I don't see an airbox or anything for the filter to sit on.

Edit: The truck came with a Chiltons and as I browsed through it I couldnt find anything on the hose thinking maybe it had something to do with vacuum pressure for the 4WD.

 

sounds like it's the breather/vent hose. not sure about the filter, probably somethin someone added for whatever reason. if you can get a good pic or two up, we might be able to see exactly what it is.

 

Sure thing. The "filter" is most deffinitely aftermarket. Let me go take some pics, hopefully that will help.

http://img534.imageshack.us/img534/1415/truck3x.jpg
http://img94.imageshack.us/img94/4081/truck2a.jpg
http://img695.imageshack.us/img695/6384/truck1c.jpg

Pics taken with my phone. Bad quality but you are able to see what Im talking about.

 

yep sounds like a vent hose to me.. ou wanna make sure u put it somewhere high so it dont fill the t-case with water if it is indeed the vent hose

 

OK, thats the three pics of the hose with filter.

 

yep looks like the vent hose just do what i said.. hang it high lol

 

Thanks gotstylez, gonna zip tie her to the top of the frame, thanks a bunch.

 

your welcome but madmaxx answered befor me lol so i cant take all the cred..

 

Real quick, the filter is pretty gunked up. Anything special around the garage to clean it with? And yes, thanks maxx =)

 

i'd say buy another one.. you can hang it without a filter. not sure how long tho. i was lookign at them about that size about 6 months ago at advanced auto aroudn here and they were like $5..