I recently put cold air intake on i noticed a unconnectedhose that goes into front diff. I cannot find anywhere that i might have pulled it off around the original air filter box.

Is it just a vent hose or is it some kind of vacum hose. It is about 1/2 in diameter

thanks for help

1999 S10 blazer LS 4.3L auto, 4x4

 

Yup, just a vent. It should have a plastic vent cap on the end of it to keep stuff from getting into it.

 

Thanks very much Kyle.