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Old 11-16-2012, 04:06 PM   #1
Scooby Newbie
Member#: 217265
Join Date: Jul 2009
Chapter/Region: MWSOC
2002 WRX
Rally Blue

Default Vacuum leak, question about hose

Hey all,

I'm running a completely stock car, however I've had a vacuum leak CEL for the last few thousand miles, and haven't had time to work on it. Now I'm driving it again for the winter, and the fuel economy is just awful. I have a 1" crack on a hose that comes up from the engine near the alternator and makes two right hand 90* turns into the two hard lines right in front of the TMIC. Is this a vacuum hose? I don't want to replace all my vacuum hoses right now if I can avoid it, though I admit many are getting pretty hard though.

You can see the hose here, hugging the silver bracket.


Honestly, I should replace all of my vacuum lines. The only issue I'm having is there are Ancillary kits and regular kits, both of which are priced above 90 bucks. Not something I want to invest in if I don't have to. Anyone know the sizes for our hoses and if I'm lucky, how much I'd need to buy of each?

I spend all my time working on the Miata, and TBH the WRX engine bay scares me a little. But I'm not scared to get my hands dirty.
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Old 11-16-2012, 06:14 PM   #2
Scooby Newbie
Member#: 330174
Join Date: Aug 2012
Chapter/Region: RMIC
Location: park city utah
2002 wrx wagon


i am also having some vac problems. i am going to replace every thing. my car spent its entire life in the desert. every piece of rubber int the engine bay is dry rotted. i was also going to do a cache can, turbo inlet, boost gauge, etg, oil pressure gauge, radiator hoses, and new tmac at the same time. to get ready for a cob stage 2.
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Old 11-17-2012, 01:25 AM   #3
mod maniac
Scooby Specialist
Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
2002 FOZ STI 2.34
Fullers Garage


A vac leak will kill your engine 90 dollars is cheap compared to an engine. You should fix your leak .
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