Vacuum hose routing

Discussion in 'Gen 1 & 2 - Engine, Exhaust, Drive Line & AC syste' started by 94shodriver, Aug 13, 2017.

  1. 94shodriver

    94shodriver SHO Member

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    Quick question, where does the vacuum hose on the back of the intake manifold plenum, right in front of the IAN go to? I just recently noticed it loose on the far end, but can't find where it is supposed to go for the life of me. Plugged it for now.
     
  2. luigisho

    luigisho SHO Member

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    What's the IAN stand for? How big is the hose diameter? Maybe pic would help someone identify it easier?
     
  3. zoomlater

    zoomlater SHO Member

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    Are your secondaries opening at 4000 rpm or do your butterflys closed when you start your engine? There is a small protrusion/lever on each butterfly that allow you to move them when the engine is off. Do they move after you start your engine?
     
  4. 94shodriver

    94shodriver SHO Member

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    I meant IAC. Stupid auto correct. Butterflies are working fine, it's not that system, but the hose that attaches to the manifold right next to the coolant plate for the IAC. Its about 5/16 outer diameter. The hose just drops down somewhere in top of the transmission. I'll try to post up pics soon. BTW- 94MTX
     
  5. pjtoledo

    pjtoledo 'ol man in the SHO

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    sounds like the hose to the solenoid/valve for the charcoal cannister
     

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