What is that hose about?

 
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Old 05-13-2003, 07:46 PM
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i have no idea what it is, but i once was looking at my filter and accidentally disconnected. th engine wouldn't start and it took me 15 minutes to realize it had fallen off. it was bizarre and pissed me right off.
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Old 05-13-2003, 09:18 PM
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How large in diameter is said hose?
If it's about 5/8", it is one of the PCV hoses, and as you found out, if loose, the engine has one big vacuum leak.
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Old 05-14-2003, 12:55 PM
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It's part of the PCV system as stated.

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Old 05-14-2003, 02:11 PM
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It's more of a generic Subaru chart but the principle is still valid. On my RS one of the hoses goes to the second air box.
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Old 05-14-2003, 05:07 PM
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Maybe the question was about the hose for the idle air control valve?
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Old 05-15-2003, 07:43 PM
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not sure, but i think you can leave the hose off. it is definatly safe short term, not sure about the long term affects, if i dont get off my lazy *** and get to autozone to buy vacumn tube, i will be able to tell you the long term affects, if any
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Old 05-15-2003, 09:03 PM
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You'll have to plug the hole in the intake and put a small breather filter on the hose or you'll pull in dirty air to the motor.

Like one of these:

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Old 05-15-2003, 11:14 PM
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IAC hose does not appear on the PCV diagram.
Originally posted by LGTBaller
oh man make it mor confusing! I am pretty sure from the diagram it is the PCV....that's it how about I take a pic so we all know what I am looking at...I will post it up tonight...may not get it right but I'll try.
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